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Gentoo: GLSA-201701-18 Normal: Python Code Execution Issue

gentoo
Calendar Grey January 10, 2017
Dist Gentoo Esm H88
Investigate Gentoo GLSA-201701-18 concerning vulnerabilities in Python that pose potential code execution threats. An upgrade is advised for remedial actions.
Multiple vulnerabilities have been found in Python, the worst of which could lead to arbitrary code execution.

Summary

Multiple vulnerabilities have been discovered in Python. Please review the CVE identifiers referenced below for details.

Resolution

All Python 2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-lang/python-2.7.12:2.7"
All Python 3 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-lang/python-3.4.5:3.4"

References

[ 1 ] CVE-2016-0772 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0772 [ 2 ] CVE-2016-5636 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-5636

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201701-18
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: Python: Multiple vulnerabilities
Date: January 10, 2017
Bugs: #531002, #585910, #585946
ID: 201701-18

Synopsis

Multiple vulnerabilities have been found in Python, the worst of which could lead to arbitrary code execution.

Background

Python is an interpreted, interactive, object-oriented programming language.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-lang/python < 3.4.5 *>= 2.7.12 >= 3.4.5

Impact

===== A remote attacker could entice a user to open a specially crafted index file using Python's dumbdbm module, possibly resulting in execution of arbitrary code with the privileges of the process. A remote attacker could entice a user to process a specially crafted input stream using Python's zipimporter module, possibly allowing attackers to cause unspecified impact.
A man in the middle attacker could strip out the STARTTLS command without generating an exception on the Python SMTP client application, preventing the establishment of the TLS layer.

Workaround

There is no known workaround at this time.

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