CVE-2008-5031: Integer Overflow
First published: Mon Nov 10 2008(Updated: )
Multiple integer overflows in Python 2.2.3 through 2.5.1, and 2.6, allow context-dependent attackers to have an unknown impact via a large integer value in the tabsize argument to the expandtabs method, as implemented by (1) the string_expandtabs function in Objects/stringobject.c and (2) the unicode_expandtabs function in Objects/unicodeobject.c. NOTE: this vulnerability reportedly exists because of an incomplete fix for CVE-2008-2315.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Python 2.7 | =2.5.1 | |
| Python 2.7 | =2.4.6 | |
| Python 2.7 | =2.2.3 | |
| Python 2.7 | =2.3.7 |
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Reference Links
- http://svn.python.org/view?rev=61350&view=rev
- http://www.openwall.com/lists/oss-security/2008/11/05/3
- http://svn.python.org/view/python/trunk/Objects/stringobject.c?rev=61350&view=diff&r1=61350&r2=61349&p1=python/trunk/Objects/stringobject.c&p2=/python/trunk/Objects/stringobject.c
- http://svn.python.org/view/python/trunk/Objects/unicodeobject.c?rev=61350&view=diff&r1=61350&r2=61349&p1=python/trunk/Objects/unicodeobject.c&p2=/python/trunk/Objects/unicodeobject.c
- http://www.openwall.com/lists/oss-security/2008/11/05/2
- http://scary.beasts.org/security/CESA-2008-008.html
- http://lists.apple.com/archives/security-announce/2009/Feb/msg00000.html
- http://secunia.com/advisories/33937
- http://security.gentoo.org/glsa/glsa-200907-16.xml
- http://secunia.com/advisories/35750
- http://support.apple.com/kb/HT3438
- http://secunia.com/advisories/37471
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://www.vupen.com/english/advisories/2009/3316
- https://exchange.xforce.ibmcloud.com/vulnerabilities/46612
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8564
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11280
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
Frequently Asked Questions
What is the severity of CVE-2008-5031?
CVE-2008-5031 is classified as a moderate severity vulnerability due to the potential for integer overflow leading to unpredictable behavior in Python.
Which versions of Python are affected by CVE-2008-5031?
CVE-2008-5031 affects Python versions 2.2.3, 2.3.7, 2.4.6, and 2.5.1.
How do I fix CVE-2008-5031?
To mitigate the risk of CVE-2008-5031, upgrade to a version of Python later than 2.5.1, ideally to the latest stable release.
What is the impact of exploiting CVE-2008-5031?
Exploitation of CVE-2008-5031 could allow attackers to execute arbitrary code or cause a denial of service through crafted input.
Are there any workarounds for CVE-2008-5031?
A potential workaround for CVE-2008-5031 is to validate and sanitize input values to the expandtabs method to avoid large integer values.
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