Mailman 3 July 2016 - Python-checkins

cpython (merge 3.4 -> 3.5): [merge from 3.4] - Prevent HTTPoxy attack (CVE-2016-1000110)
by senthil.kumaran July 31, 2016

July 31, 2016

https://hg.python.org/cpython/rev/a0ac52ed8f79 changeset: 102503:a0ac52ed8f79 branch: 3.5 parent: 102492:4cb94e561e2d parent: 102502:3c19023c9fec user: Senthil Kumaran <senthil(a)uthcode.com> date: Sat Jul 30 23:39:06 2016 -0700 summary: [merge from 3.4] - Prevent HTTPoxy attack (CVE-2016-1000110) Ignore the HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates that the script is in CGI mode. Issue #27568 Reported and patch contributed by Rémi Rampin. files: Doc/howto/urllib2.rst | 5 +++++ Doc/library/urllib.request.rst | 15 +++++++++++++++ Lib/test/test_urllib.py | 12 ++++++++++++ Lib/urllib/request.py | 6 ++++++ Misc/NEWS | 4 ++++ 5 files changed, 42 insertions(+), 0 deletions(-) diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst --- a/Doc/howto/urllib2.rst +++ b/Doc/howto/urllib2.rst @@ -538,6 +538,11 @@ through a proxy. However, this can be enabled by extending urllib.request as shown in the recipe [#]_. +.. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; see + the documentation on :func:`~urllib.request.getproxies`. + Sockets and Layers ================== diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst --- a/Doc/library/urllib.request.rst +++ b/Doc/library/urllib.request.rst @@ -173,6 +173,16 @@ If both lowercase and uppercase environment variables exist (and disagree), lowercase is preferred. + .. note:: + + If the environment variable ``REQUEST_METHOD`` is set, which usually + indicates your script is running in a CGI environment, the environment + variable ``HTTP_PROXY`` (uppercase ``_PROXY``) will be ignored. This is + because that variable can be injected by a client using the "Proxy:" HTTP + header. If you need to use an HTTP proxy in a CGI environment, either use + ``ProxyHandler`` explicitly, or make sure the variable name is in + lowercase (or at least the ``_proxy`` suffix). + The following classes are provided: @@ -280,6 +290,11 @@ list of hostname suffixes, optionally with ``:port`` appended, for example ``cern.ch,ncsa.uiuc.edu,some.host:8080``. + .. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; + see the documentation on :func:`~urllib.request.getproxies`. + .. class:: HTTPPasswordMgr() diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py --- a/Lib/test/test_urllib.py +++ b/Lib/test/test_urllib.py @@ -232,6 +232,18 @@ self.assertTrue(urllib.request.proxy_bypass_environment('anotherdomain.com:8888')) self.assertTrue(urllib.request.proxy_bypass_environment('newdomain.com:1234')) + def test_proxy_cgi_ignore(self): + try: + self.env.set('HTTP_PROXY', 'http://somewhere:3128') + proxies = urllib.request.getproxies_environment() + self.assertEqual('http://somewhere:3128', proxies['http']) + self.env.set('REQUEST_METHOD', 'GET') + proxies = urllib.request.getproxies_environment() + self.assertNotIn('http', proxies) + finally: + self.env.unset('REQUEST_METHOD') + self.env.unset('HTTP_PROXY') + def test_proxy_bypass_environment_host_match(self): bypass = urllib.request.proxy_bypass_environment self.env.set('NO_PROXY', diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py --- a/Lib/urllib/request.py +++ b/Lib/urllib/request.py @@ -2412,6 +2412,12 @@ name = name.lower() if value and name[-6:] == '_proxy': proxies[name[:-6]] = value + # CVE-2016-1000110 - If we are running as CGI script, forget HTTP_PROXY + # (non-all-lowercase) as it may be set from the web server by a "Proxy:" + # header from the client + # If "proxy" is lowercase, it will still be used thanks to the next block + if 'REQUEST_METHOD' in os.environ: + proxies.pop('http', None) for name, value in os.environ.items(): if name[-6:] == '_proxy': name = name.lower() diff --git a/Misc/NEWS b/Misc/NEWS --- a/Misc/NEWS +++ b/Misc/NEWS @@ -34,6 +34,10 @@ Library ------- +- Issue #27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the + HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates + that the script is in CGI mode. + - Issue #27130: In the "zlib" module, fix handling of large buffers (typically 4 GiB) when compressing and decompressing. Previously, inputs were limited to 4 GiB, and compression and decompression operations did not -- Repository URL: https://hg.python.org/cpython

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cpython (merge 3.5 -> 3.5): merge heads
by senthil.kumaran July 31, 2016

July 31, 2016

https://hg.python.org/cpython/rev/7062eaee3adf changeset: 102504:7062eaee3adf branch: 3.5 parent: 102499:095b424127e7 parent: 102503:a0ac52ed8f79 user: Senthil Kumaran <senthil(a)uthcode.com> date: Sat Jul 30 23:48:19 2016 -0700 summary: merge heads files: Doc/howto/urllib2.rst | 5 +++++ Doc/library/urllib.request.rst | 15 +++++++++++++++ Lib/test/test_urllib.py | 12 ++++++++++++ Lib/urllib/request.py | 6 ++++++ Misc/NEWS | 4 ++++ 5 files changed, 42 insertions(+), 0 deletions(-) diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst --- a/Doc/howto/urllib2.rst +++ b/Doc/howto/urllib2.rst @@ -538,6 +538,11 @@ through a proxy. However, this can be enabled by extending urllib.request as shown in the recipe [#]_. +.. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; see + the documentation on :func:`~urllib.request.getproxies`. + Sockets and Layers ================== diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst --- a/Doc/library/urllib.request.rst +++ b/Doc/library/urllib.request.rst @@ -173,6 +173,16 @@ If both lowercase and uppercase environment variables exist (and disagree), lowercase is preferred. + .. note:: + + If the environment variable ``REQUEST_METHOD`` is set, which usually + indicates your script is running in a CGI environment, the environment + variable ``HTTP_PROXY`` (uppercase ``_PROXY``) will be ignored. This is + because that variable can be injected by a client using the "Proxy:" HTTP + header. If you need to use an HTTP proxy in a CGI environment, either use + ``ProxyHandler`` explicitly, or make sure the variable name is in + lowercase (or at least the ``_proxy`` suffix). + The following classes are provided: @@ -280,6 +290,11 @@ list of hostname suffixes, optionally with ``:port`` appended, for example ``cern.ch,ncsa.uiuc.edu,some.host:8080``. + .. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; + see the documentation on :func:`~urllib.request.getproxies`. + .. class:: HTTPPasswordMgr() diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py --- a/Lib/test/test_urllib.py +++ b/Lib/test/test_urllib.py @@ -232,6 +232,18 @@ self.assertTrue(urllib.request.proxy_bypass_environment('anotherdomain.com:8888')) self.assertTrue(urllib.request.proxy_bypass_environment('newdomain.com:1234')) + def test_proxy_cgi_ignore(self): + try: + self.env.set('HTTP_PROXY', 'http://somewhere:3128') + proxies = urllib.request.getproxies_environment() + self.assertEqual('http://somewhere:3128', proxies['http']) + self.env.set('REQUEST_METHOD', 'GET') + proxies = urllib.request.getproxies_environment() + self.assertNotIn('http', proxies) + finally: + self.env.unset('REQUEST_METHOD') + self.env.unset('HTTP_PROXY') + def test_proxy_bypass_environment_host_match(self): bypass = urllib.request.proxy_bypass_environment self.env.set('NO_PROXY', diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py --- a/Lib/urllib/request.py +++ b/Lib/urllib/request.py @@ -2412,6 +2412,12 @@ name = name.lower() if value and name[-6:] == '_proxy': proxies[name[:-6]] = value + # CVE-2016-1000110 - If we are running as CGI script, forget HTTP_PROXY + # (non-all-lowercase) as it may be set from the web server by a "Proxy:" + # header from the client + # If "proxy" is lowercase, it will still be used thanks to the next block + if 'REQUEST_METHOD' in os.environ: + proxies.pop('http', None) for name, value in os.environ.items(): if name[-6:] == '_proxy': name = name.lower() diff --git a/Misc/NEWS b/Misc/NEWS --- a/Misc/NEWS +++ b/Misc/NEWS @@ -34,6 +34,10 @@ Library ------- +- Issue #27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the + HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates + that the script is in CGI mode. + - Issue #27656: Do not assume sched.h defines any SCHED_* constants. - Issue #27130: In the "zlib" module, fix handling of large buffers -- Repository URL: https://hg.python.org/cpython

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cpython (merge 3.5 -> default): [merge from 3.5] - Prevent HTTPoxy attack (CVE-2016-1000110)
by senthil.kumaran July 31, 2016

July 31, 2016

https://hg.python.org/cpython/rev/6c2e2de5ab8e changeset: 102505:6c2e2de5ab8e parent: 102500:64b763290da9 parent: 102504:7062eaee3adf user: Senthil Kumaran <senthil(a)uthcode.com> date: Sat Jul 30 23:51:13 2016 -0700 summary: [merge from 3.5] - Prevent HTTPoxy attack (CVE-2016-1000110) Ignore the HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates that the script is in CGI mode. Issue #27568 Reported and patch contributed by Rémi Rampin. files: Doc/howto/urllib2.rst | 5 +++++ Doc/library/urllib.request.rst | 15 +++++++++++++++ Lib/test/test_urllib.py | 12 ++++++++++++ Lib/urllib/request.py | 6 ++++++ Misc/ACKS | 1 + Misc/NEWS | 4 ++++ 6 files changed, 43 insertions(+), 0 deletions(-) diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst --- a/Doc/howto/urllib2.rst +++ b/Doc/howto/urllib2.rst @@ -538,6 +538,11 @@ through a proxy. However, this can be enabled by extending urllib.request as shown in the recipe [#]_. +.. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; see + the documentation on :func:`~urllib.request.getproxies`. + Sockets and Layers ================== diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst --- a/Doc/library/urllib.request.rst +++ b/Doc/library/urllib.request.rst @@ -173,6 +173,16 @@ If both lowercase and uppercase environment variables exist (and disagree), lowercase is preferred. + .. note:: + + If the environment variable ``REQUEST_METHOD`` is set, which usually + indicates your script is running in a CGI environment, the environment + variable ``HTTP_PROXY`` (uppercase ``_PROXY``) will be ignored. This is + because that variable can be injected by a client using the "Proxy:" HTTP + header. If you need to use an HTTP proxy in a CGI environment, either use + ``ProxyHandler`` explicitly, or make sure the variable name is in + lowercase (or at least the ``_proxy`` suffix). + The following classes are provided: @@ -280,6 +290,11 @@ list of hostname suffixes, optionally with ``:port`` appended, for example ``cern.ch,ncsa.uiuc.edu,some.host:8080``. + .. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; + see the documentation on :func:`~urllib.request.getproxies`. + .. class:: HTTPPasswordMgr() diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py --- a/Lib/test/test_urllib.py +++ b/Lib/test/test_urllib.py @@ -232,6 +232,18 @@ self.assertTrue(urllib.request.proxy_bypass_environment('anotherdomain.com:8888')) self.assertTrue(urllib.request.proxy_bypass_environment('newdomain.com:1234')) + def test_proxy_cgi_ignore(self): + try: + self.env.set('HTTP_PROXY', 'http://somewhere:3128') + proxies = urllib.request.getproxies_environment() + self.assertEqual('http://somewhere:3128', proxies['http']) + self.env.set('REQUEST_METHOD', 'GET') + proxies = urllib.request.getproxies_environment() + self.assertNotIn('http', proxies) + finally: + self.env.unset('REQUEST_METHOD') + self.env.unset('HTTP_PROXY') + def test_proxy_bypass_environment_host_match(self): bypass = urllib.request.proxy_bypass_environment self.env.set('NO_PROXY', diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py --- a/Lib/urllib/request.py +++ b/Lib/urllib/request.py @@ -2477,6 +2477,12 @@ name = name.lower() if value and name[-6:] == '_proxy': proxies[name[:-6]] = value + # CVE-2016-1000110 - If we are running as CGI script, forget HTTP_PROXY + # (non-all-lowercase) as it may be set from the web server by a "Proxy:" + # header from the client + # If "proxy" is lowercase, it will still be used thanks to the next block + if 'REQUEST_METHOD' in os.environ: + proxies.pop('http', None) for name, value in os.environ.items(): if name[-6:] == '_proxy': name = name.lower() diff --git a/Misc/ACKS b/Misc/ACKS --- a/Misc/ACKS +++ b/Misc/ACKS @@ -1204,6 +1204,7 @@ Jeff Ramnani Varpu Rantala Brodie Rao +Rémi Rampin Senko Rasic Antti Rasinen Nikolaus Rath diff --git a/Misc/NEWS b/Misc/NEWS --- a/Misc/NEWS +++ b/Misc/NEWS @@ -38,6 +38,10 @@ Library ------- +- Issue #27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the + HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates + that the script is in CGI mode. + - Issue #7063: Remove dead code from the "array" module's slice handling. Patch by Chuck. -- Repository URL: https://hg.python.org/cpython

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cpython (3.3): Prevent HTTPoxy attack (CVE-2016-1000110)
by senthil.kumaran July 31, 2016

July 31, 2016

https://hg.python.org/cpython/rev/95b09ccc8a3e changeset: 102501:95b09ccc8a3e branch: 3.3 parent: 102340:1c06e02b968a user: Senthil Kumaran <senthil(a)uthcode.com> date: Sat Jul 30 23:24:16 2016 -0700 summary: Prevent HTTPoxy attack (CVE-2016-1000110) Ignore the HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates that the script is in CGI mode. Issue #27568 Reported and patch contributed by Rémi Rampin. files: Doc/howto/urllib2.rst | 5 +++++ Doc/library/urllib.request.rst | 13 +++++++++++++ Lib/test/test_urllib.py | 13 +++++++++++++ Lib/urllib/request.py | 7 +++++++ Misc/NEWS | 4 ++++ 5 files changed, 42 insertions(+), 0 deletions(-) diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst --- a/Doc/howto/urllib2.rst +++ b/Doc/howto/urllib2.rst @@ -538,6 +538,11 @@ through a proxy. However, this can be enabled by extending urllib.request as shown in the recipe [#]_. +.. note:: + + `HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; see + the documentation on :func:`~urllib.request.getproxies`. + Sockets and Layers ================== diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst --- a/Doc/library/urllib.request.rst +++ b/Doc/library/urllib.request.rst @@ -161,6 +161,14 @@ cannot find it, looks for proxy information from Mac OSX System Configuration for Mac OS X and Windows Systems Registry for Windows. + .. note:: + + If the environment variable ``REQUEST_METHOD`` is set, which usually + indicates your script is running in a CGI environment, the environment + variable ``HTTP_PROXY`` (uppercase ``_PROXY``) will be ignored. This is + because that variable can be injected by a client using the "Proxy:" HTTP + header. If you need to use an HTTP proxy in a CGI environment use + ``ProxyHandler`` explicitly. The following classes are provided: @@ -265,6 +273,11 @@ To disable autodetected proxy pass an empty dictionary. + .. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; + see the documentation on :func:`~urllib.request.getproxies`. + .. class:: HTTPPasswordMgr() diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py --- a/Lib/test/test_urllib.py +++ b/Lib/test/test_urllib.py @@ -194,6 +194,19 @@ self.env.set('NO_PROXY', 'localhost, anotherdomain.com, newdomain.com') self.assertTrue(urllib.request.proxy_bypass_environment('anotherdomain.com')) + def test_proxy_cgi_ignore(self): + try: + self.env.set('HTTP_PROXY', 'http://somewhere:3128') + proxies = urllib.request.getproxies_environment() + self.assertEqual('http://somewhere:3128', proxies['http']) + self.env.set('REQUEST_METHOD', 'GET') + proxies = urllib.request.getproxies_environment() + self.assertNotIn('http', proxies) + finally: + self.env.unset('REQUEST_METHOD') + self.env.unset('HTTP_PROXY') + + class urlopen_HttpTests(unittest.TestCase, FakeHTTPMixin): """Test urlopen() opening a fake http connection.""" diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py --- a/Lib/urllib/request.py +++ b/Lib/urllib/request.py @@ -2366,6 +2366,13 @@ name = name.lower() if value and name[-6:] == '_proxy': proxies[name[:-6]] = value + + # CVE-2016-1000110 - If we are running as CGI script, forget HTTP_PROXY + # (non-all-lowercase) as it may be set from the web server by a "Proxy:" + # header from the client + if 'REQUEST_METHOD' in os.environ: + proxies.pop('http', None) + return proxies def proxy_bypass_environment(host): diff --git a/Misc/NEWS b/Misc/NEWS --- a/Misc/NEWS +++ b/Misc/NEWS @@ -29,6 +29,10 @@ Library ------- +- Issue #27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the + HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates + that the script is in CGI mode. + - Issue #24521: Fix possible integer overflows in the pickle module. - Issue #22931: Allow '[' and ']' in cookie values. -- Repository URL: https://hg.python.org/cpython

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cpython (merge 3.3 -> 3.4): [merge from 3.3] Prevent HTTPoxy attack (CVE-2016-1000110)
by senthil.kumaran July 31, 2016

July 31, 2016

https://hg.python.org/cpython/rev/3c19023c9fec changeset: 102502:3c19023c9fec branch: 3.4 parent: 102341:17ec4d58c046 parent: 102501:95b09ccc8a3e user: Senthil Kumaran <senthil(a)uthcode.com> date: Sat Jul 30 23:34:34 2016 -0700 summary: [merge from 3.3] Prevent HTTPoxy attack (CVE-2016-1000110) Ignore the HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates that the script is in CGI mode. Issue #27568 Reported and patch contributed by Rémi Rampin. files: Doc/howto/urllib2.rst | 5 +++++ Doc/library/urllib.request.rst | 13 +++++++++++++ Lib/test/test_urllib.py | 13 +++++++++++++ Lib/urllib/request.py | 7 +++++++ Misc/NEWS | 4 ++++ 5 files changed, 42 insertions(+), 0 deletions(-) diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst --- a/Doc/howto/urllib2.rst +++ b/Doc/howto/urllib2.rst @@ -538,6 +538,11 @@ through a proxy. However, this can be enabled by extending urllib.request as shown in the recipe [#]_. +.. note:: + + `HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; see + the documentation on :func:`~urllib.request.getproxies`. + Sockets and Layers ================== diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst --- a/Doc/library/urllib.request.rst +++ b/Doc/library/urllib.request.rst @@ -166,6 +166,14 @@ cannot find it, looks for proxy information from Mac OSX System Configuration for Mac OS X and Windows Systems Registry for Windows. + .. note:: + + If the environment variable ``REQUEST_METHOD`` is set, which usually + indicates your script is running in a CGI environment, the environment + variable ``HTTP_PROXY`` (uppercase ``_PROXY``) will be ignored. This is + because that variable can be injected by a client using the "Proxy:" HTTP + header. If you need to use an HTTP proxy in a CGI environment use + ``ProxyHandler`` explicitly. The following classes are provided: @@ -268,6 +276,11 @@ To disable autodetected proxy pass an empty dictionary. + .. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; + see the documentation on :func:`~urllib.request.getproxies`. + .. class:: HTTPPasswordMgr() diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py --- a/Lib/test/test_urllib.py +++ b/Lib/test/test_urllib.py @@ -222,6 +222,19 @@ self.env.set('NO_PROXY', 'localhost, anotherdomain.com, newdomain.com') self.assertTrue(urllib.request.proxy_bypass_environment('anotherdomain.com')) + def test_proxy_cgi_ignore(self): + try: + self.env.set('HTTP_PROXY', 'http://somewhere:3128') + proxies = urllib.request.getproxies_environment() + self.assertEqual('http://somewhere:3128', proxies['http']) + self.env.set('REQUEST_METHOD', 'GET') + proxies = urllib.request.getproxies_environment() + self.assertNotIn('http', proxies) + finally: + self.env.unset('REQUEST_METHOD') + self.env.unset('HTTP_PROXY') + + class urlopen_HttpTests(unittest.TestCase, FakeHTTPMixin, FakeFTPMixin): """Test urlopen() opening a fake http connection.""" diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py --- a/Lib/urllib/request.py +++ b/Lib/urllib/request.py @@ -2337,6 +2337,13 @@ name = name.lower() if value and name[-6:] == '_proxy': proxies[name[:-6]] = value + + # CVE-2016-1000110 - If we are running as CGI script, forget HTTP_PROXY + # (non-all-lowercase) as it may be set from the web server by a "Proxy:" + # header from the client + if 'REQUEST_METHOD' in os.environ: + proxies.pop('http', None) + return proxies def proxy_bypass_environment(host): diff --git a/Misc/NEWS b/Misc/NEWS --- a/Misc/NEWS +++ b/Misc/NEWS @@ -13,6 +13,10 @@ Library ------- +- Issue #27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the + HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates + that the script is in CGI mode. + Tests ----- -- Repository URL: https://hg.python.org/cpython

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cpython (merge 3.5 -> default): merge 3.5 (#27656)
by benjamin.peterson July 31, 2016

July 31, 2016

https://hg.python.org/cpython/rev/64b763290da9 changeset: 102500:64b763290da9 parent: 102498:313e8fdb0d0c parent: 102499:095b424127e7 user: Benjamin Peterson <benjamin(a)python.org> date: Sat Jul 30 23:22:24 2016 -0700 summary: merge 3.5 (#27656) files: Misc/NEWS | 2 ++ Modules/posixmodule.c | 6 ++++++ 2 files changed, 8 insertions(+), 0 deletions(-) diff --git a/Misc/NEWS b/Misc/NEWS --- a/Misc/NEWS +++ b/Misc/NEWS @@ -41,6 +41,8 @@ - Issue #7063: Remove dead code from the "array" module's slice handling. Patch by Chuck. +- Issue #27656: Do not assume sched.h defines any SCHED_* constants. + - Issue #27130: In the "zlib" module, fix handling of large buffers (typically 4 GiB) when compressing and decompressing. Previously, inputs were limited to 4 GiB, and compression and decompression operations did not diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c --- a/Modules/posixmodule.c +++ b/Modules/posixmodule.c @@ -12938,9 +12938,15 @@ #endif #ifdef HAVE_SCHED_H +#ifdef SCHED_OTHER if (PyModule_AddIntMacro(m, SCHED_OTHER)) return -1; +#endif +#ifdef SCHED_FIFO if (PyModule_AddIntMacro(m, SCHED_FIFO)) return -1; +#endif +#ifdef SCHED_RR if (PyModule_AddIntMacro(m, SCHED_RR)) return -1; +#endif #ifdef SCHED_SPORADIC if (PyModule_AddIntMacro(m, SCHED_SPORADIC) return -1; #endif -- Repository URL: https://hg.python.org/cpython

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cpython (3.5): all SCHED_ constants are optional (closes #27656)
by benjamin.peterson July 31, 2016

July 31, 2016

https://hg.python.org/cpython/rev/095b424127e7 changeset: 102499:095b424127e7 branch: 3.5 parent: 102492:4cb94e561e2d user: Benjamin Peterson <benjamin(a)python.org> date: Sat Jul 30 23:21:50 2016 -0700 summary: all SCHED_ constants are optional (closes #27656) files: Misc/NEWS | 2 ++ Modules/posixmodule.c | 6 ++++++ 2 files changed, 8 insertions(+), 0 deletions(-) diff --git a/Misc/NEWS b/Misc/NEWS --- a/Misc/NEWS +++ b/Misc/NEWS @@ -34,6 +34,8 @@ Library ------- +- Issue #27656: Do not assume sched.h defines any SCHED_* constants. + - Issue #27130: In the "zlib" module, fix handling of large buffers (typically 4 GiB) when compressing and decompressing. Previously, inputs were limited to 4 GiB, and compression and decompression operations did not diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c --- a/Modules/posixmodule.c +++ b/Modules/posixmodule.c @@ -12750,9 +12750,15 @@ #endif #ifdef HAVE_SCHED_H +#ifdef SCHED_OTHER if (PyModule_AddIntMacro(m, SCHED_OTHER)) return -1; +#endif +#ifdef SCHED_FIFO if (PyModule_AddIntMacro(m, SCHED_FIFO)) return -1; +#endif +#ifdef SCHED_RR if (PyModule_AddIntMacro(m, SCHED_RR)) return -1; +#endif #ifdef SCHED_SPORADIC if (PyModule_AddIntMacro(m, SCHED_SPORADIC) return -1; #endif -- Repository URL: https://hg.python.org/cpython

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cpython: Issue 27366: PEP 487 docs updates
by nick.coghlan July 30, 2016

July 30, 2016

https://hg.python.org/cpython/rev/313e8fdb0d0c changeset: 102498:313e8fdb0d0c user: Nick Coghlan <ncoghlan(a)gmail.com> date: Sun Jul 31 12:42:49 2016 +1000 summary: Issue 27366: PEP 487 docs updates - Porting note for type keyword arg handling - __init_subclass__ note regarding metaclass hint files: Doc/reference/datamodel.rst | 7 +++++++ Doc/whatsnew/3.6.rst | 9 +++++++++ 2 files changed, 16 insertions(+), 0 deletions(-) diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst --- a/Doc/reference/datamodel.rst +++ b/Doc/reference/datamodel.rst @@ -1672,6 +1672,13 @@ The default implementation ``object.__init_subclass__`` does nothing, but raises an error if it is called with any arguments. + .. note:: + + The metaclass hint ``metaclass`` is consumed by the rest of the type + machinery, and is never passed to ``__init_subclass__`` implementations. + The actual metaclass (rather than the explicit hint) can be accessed as + ``type(cls)``. + .. versionadded:: 3.6 diff --git a/Doc/whatsnew/3.6.rst b/Doc/whatsnew/3.6.rst --- a/Doc/whatsnew/3.6.rst +++ b/Doc/whatsnew/3.6.rst @@ -759,6 +759,15 @@ <keyword-only_parameter>`. (Contributed by Serhiy Storchaka in :issue:`18726`.) +* As part of :pep:`487`, the handling of keyword arguments passed to + :class:`type` (other than the metaclass hint, ``metaclass``) is now + consistently delegated to :meth:`object.__init_subclass__`. This means that + :meth:`type.__new__` and :meth:`type.__init__` both now accept arbitrary + keyword arguments, but :meth:`object.__init_subclass__` (which is called from + :meth:`type.__new__`) will reject them by default. Custom metaclasses + accepting additional keyword arguments will need to adjust their calls to + :meth:`type.__new__` (whether direct or via :class:`super`) accordingly. + Changes in the C API -------------------- -- Repository URL: https://hg.python.org/cpython

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cpython: Issue 24773: Use the standard Asia/Tehran name in the Iran test.
by alexander.belopolsky July 30, 2016

July 30, 2016

https://hg.python.org/cpython/rev/eed3a5b9239f changeset: 102497:eed3a5b9239f parent: 102495:77d16a5dc779 user: Alexander Belopolsky <alexander.belopolsky(a)gmail.com> date: Sat Jul 30 11:41:02 2016 -0400 summary: Issue 24773: Use the standard Asia/Tehran name in the Iran test. files: Lib/test/datetimetester.py | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/Lib/test/datetimetester.py b/Lib/test/datetimetester.py --- a/Lib/test/datetimetester.py +++ b/Lib/test/datetimetester.py @@ -4794,7 +4794,7 @@ # Iran had a sub-minute UTC offset before 1946. class IranTest(ZoneInfoTest): - zonename = 'Iran' + zonename = 'Asia/Tehran' def load_tests(loader, standard_tests, pattern): standard_tests.addTest(ZoneInfoCompleteTest()) -- Repository URL: https://hg.python.org/cpython

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cpython (2.7): Prevent HTTPoxy attack (CVE-2016-1000110)
by senthil.kumaran July 30, 2016

July 30, 2016

https://hg.python.org/cpython/rev/ba915d561667 changeset: 102496:ba915d561667 branch: 2.7 parent: 102472:c8c1ea94379a user: Senthil Kumaran <senthil(a)uthcode.com> date: Sat Jul 30 05:49:53 2016 -0700 summary: Prevent HTTPoxy attack (CVE-2016-1000110) Ignore the HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates that the script is in CGI mode. Issue reported and patch contributed by Rémi Rampin. files: Doc/howto/urllib2.rst | 5 +++++ Doc/library/urllib.rst | 10 ++++++++++ Doc/library/urllib2.rst | 5 +++++ Lib/test/test_urllib.py | 12 ++++++++++++ Lib/urllib.py | 9 +++++++++ Misc/ACKS | 1 + Misc/NEWS | 4 ++++ 7 files changed, 46 insertions(+), 0 deletions(-) diff --git a/Doc/howto/urllib2.rst b/Doc/howto/urllib2.rst --- a/Doc/howto/urllib2.rst +++ b/Doc/howto/urllib2.rst @@ -525,6 +525,11 @@ through a proxy. However, this can be enabled by extending urllib2 as shown in the recipe [#]_. +.. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; see + the documentation on :func:`~urllib.getproxies`. + Sockets and Layers ================== diff --git a/Doc/library/urllib.rst b/Doc/library/urllib.rst --- a/Doc/library/urllib.rst +++ b/Doc/library/urllib.rst @@ -295,6 +295,16 @@ If both lowercase and uppercase environment variables exist (and disagree), lowercase is preferred. + .. note:: + + If the environment variable ``REQUEST_METHOD`` is set, which usually + indicates your script is running in a CGI environment, the environment + variable ``HTTP_PROXY`` (uppercase ``_PROXY``) will be ignored. This is + because that variable can be injected by a client using the "Proxy:" + HTTP header. If you need to use an HTTP proxy in a CGI environment, + either use ``ProxyHandler`` explicitly, or make sure the variable name + is in lowercase (or at least the ``_proxy`` suffix). + .. note:: urllib also exposes certain utility functions like splittype, splithost and others parsing URL into various components. But it is recommended to use diff --git a/Doc/library/urllib2.rst b/Doc/library/urllib2.rst --- a/Doc/library/urllib2.rst +++ b/Doc/library/urllib2.rst @@ -229,6 +229,11 @@ To disable autodetected proxy pass an empty dictionary. + .. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; + see the documentation on :func:`~urllib.getproxies`. + .. class:: HTTPPasswordMgr() diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py --- a/Lib/test/test_urllib.py +++ b/Lib/test/test_urllib.py @@ -170,6 +170,18 @@ self.assertTrue(urllib.proxy_bypass_environment('anotherdomain.com:8888')) self.assertTrue(urllib.proxy_bypass_environment('newdomain.com:1234')) + def test_proxy_cgi_ignore(self): + try: + self.env.set('HTTP_PROXY', 'http://somewhere:3128') + proxies = urllib.getproxies_environment() + self.assertEqual('http://somewhere:3128', proxies['http']) + self.env.set('REQUEST_METHOD', 'GET') + proxies = urllib.getproxies_environment() + self.assertNotIn('http', proxies) + finally: + self.env.unset('REQUEST_METHOD') + self.env.unset('HTTP_PROXY') + def test_proxy_bypass_environment_host_match(self): bypass = urllib.proxy_bypass_environment self.env.set('NO_PROXY', diff --git a/Lib/urllib.py b/Lib/urllib.py --- a/Lib/urllib.py +++ b/Lib/urllib.py @@ -1380,12 +1380,21 @@ If you need a different way, you can pass a proxies dictionary to the [Fancy]URLopener constructor. """ + # Get all variables proxies = {} for name, value in os.environ.items(): name = name.lower() if value and name[-6:] == '_proxy': proxies[name[:-6]] = value + # CVE-2016-1000110 - If we are running as CGI script, forget HTTP_PROXY + # (non-all-lowercase) as it may be set from the web server by a "Proxy:" + # header from the client + # If "proxy" is lowercase, it will still be used thanks to the next block + if 'REQUEST_METHOD' in os.environ: + proxies.pop('http', None) + + # Get lowercase variables for name, value in os.environ.items(): if name[-6:] == '_proxy': name = name.lower() diff --git a/Misc/ACKS b/Misc/ACKS --- a/Misc/ACKS +++ b/Misc/ACKS @@ -1123,6 +1123,7 @@ Jeff Ramnani Varpu Rantala Brodie Rao +Rémi Rampin Senko Rasic Antti Rasinen Nikolaus Rath diff --git a/Misc/NEWS b/Misc/NEWS --- a/Misc/NEWS +++ b/Misc/NEWS @@ -29,6 +29,10 @@ Library ------- +- Issue #27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the + HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates + that the script is in CGI mode. + - Issue #27130: In the "zlib" module, fix handling of large buffers (typically 2 or 4 GiB). Previously, inputs were limited to 2 GiB, and compression and decompression operations did not properly handle results of -- Repository URL: https://hg.python.org/cpython

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