CVE-2016-5636: Buffer Overflow
First published: Fri Sep 02 2016(Updated: )
Integer overflow in the get_data function in zipimport.c in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 allows remote attackers to have unspecified impact via a negative data size value, which triggers a heap-based buffer overflow.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Python 2.7 | =3.0 | |
| Python 2.7 | =3.0.1 | |
| Python 2.7 | =3.1.0 | |
| Python 2.7 | =3.1.1 | |
| Python 2.7 | =3.1.2 | |
| Python 2.7 | =3.1.3 | |
| Python 2.7 | =3.1.4 | |
| Python 2.7 | =3.1.5 | |
| Python 2.7 | =3.2.0 | |
| Python 2.7 | =3.2.1 | |
| Python 2.7 | =3.2.2 | |
| Python 2.7 | =3.2.3 | |
| Python 2.7 | =3.2.4 | |
| Python 2.7 | =3.2.5 | |
| Python 2.7 | =3.2.6 | |
| Python 2.7 | =3.3.0 | |
| Python 2.7 | =3.3.1 | |
| Python 2.7 | =3.3.2 | |
| Python 2.7 | =3.3.3 | |
| Python 2.7 | =3.3.4 | |
| Python 2.7 | =3.3.5 | |
| Python 2.7 | =3.3.6 | |
| Python 2.7 | =3.4.0 | |
| Python 2.7 | =3.4.1 | |
| Python 2.7 | =3.4.2 | |
| Python 2.7 | =3.4.3 | |
| Python 2.7 | =3.4.4 | |
| Python 2.7 | <=2.7.11 | |
| Python 2.7 | =3.5.0 | |
| Python 2.7 | =3.5.1 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- http://rhn.redhat.com/errata/RHSA-2016-2586.html
- http://www.openwall.com/lists/oss-security/2016/06/15/15
- http://www.openwall.com/lists/oss-security/2016/06/16/1
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- http://www.securityfocus.com/bid/91247
- http://www.securitytracker.com/id/1038138
- http://www.splunk.com/view/SP-CAAAPSV
- http://www.splunk.com/view/SP-CAAAPUE
- https://bugs.python.org/issue26171
- https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5
- https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2
- https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS
- https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
- https://security.gentoo.org/glsa/201701-18
Frequently Asked Questions
What is the severity of CVE-2016-5636?
CVE-2016-5636 has a severity rating that can lead to a heap-based buffer overflow, potentially allowing remote attackers to affect the application.
How do I fix CVE-2016-5636?
To address CVE-2016-5636, upgrade to Python versions 2.7.12, 3.4.5, or 3.5.2 or later.
What versions of Python are affected by CVE-2016-5636?
CVE-2016-5636 affects Python versions prior to 2.7.12, 3.4.5, and 3.5.2.
Can CVE-2016-5636 be exploited remotely?
Yes, CVE-2016-5636 can be exploited by remote attackers through a negative data size value.
What is the impact of CVE-2016-5636?
The impact of CVE-2016-5636 includes potential arbitrary code execution and application instability due to a buffer overflow.
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- version/python 2.7/3.2.4
- version/python 2.7/3.2.5
- version/python 2.7/3.2.6
- version/python 2.7/3.3.0
- version/python 2.7/3.3.1
- version/python 2.7/3.3.2
- version/python 2.7/3.3.3
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