Bug 816153 - (CVE-2012-2135) CVE-2012-2135 python3: Data leaks, memory damage and possible crash in utf-16 decoder
CVE-2012-2135 python3: Data leaks, memory damage and possible crash in utf-16...
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On: 816156
Blocks: 816043
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Reported: 2012-04-25 07:10 EDT by Jan Lieskovsky
Modified: 2016-11-08 11:18 EST (History)
4 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2012-07-23 02:28:58 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Jan Lieskovsky 2012-04-25 07:10:31 EDT
A security flaw was found in the way the UTF-16 decoder of Python, an interpreted, interactive, object-oriented programming language, handled error messages after processing of certain UTF-16 strings. If a Python UTF-16 module based application provided remote means to accept unsanitized input, a remote attacker could use this flaw to cause denial of service (python executable to leak data, cause memory damage and possibly crash).

Upstream ticket:
[1] http://bugs.python.org/issue14579

CVE assignment:
[2] http://www.openwall.com/lists/oss-security/2012/04/25/3

Preliminary patches against the v3.2 version:
[3] http://bugs.python.org/file25294/utf16_error_handling-3.2.patch
[4] http://bugs.python.org/file25295/utf16_update_after_error-3.2.patch
[5] http://bugs.python.org/file25352/utf16_error_handling-3.2_3.patch

[6] http://bugs.python.org/file25276/utf16crasher.py
Comment 1 Jan Lieskovsky 2012-04-25 07:12:23 EDT
This issue affects the versions of the python3 package, as shipped with Fedora release of 15 and 16. Please schedule an update.
Comment 2 Jan Lieskovsky 2012-04-25 07:13:42 EDT
Created python3 tracking bugs for this issue

Affects: fedora-all [bug 816156]

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