Out-of-bounds write in Python - CVE-2010-2089

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The audioop module in Python 2.7 and 3.2 does not verify the relationships between size arguments and byte string lengths, which allows context-dependent attackers to cause a denial of service (memory corruption and application crash) via crafted arguments, as demonstrated by a call to audioop.reverse with a one-byte string, a different vulnerability than CVE-2010-1634.

Affected software

How to mitigate CVE-2010-2089

Links to Public Exploits and PoC-codes

• Exploit #11451 - Python 3.2 - 'audioop' Module Memory Corruption (June 3, 2025)

External References

• http://bugs.python.org/issue7673
• http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042751.html
• http://www.securityfocus.com/bid/40863
• http://secunia.com/advisories/40194
• http://www.vupen.com/english/advisories/2010/1448
• https://bugzilla.redhat.com/show_bug.cgi?id=598197
• http://www.vupen.com/english/advisories/2011/0122
• http://www.redhat.com/support/errata/RHSA-2011-0027.html
• http://secunia.com/advisories/42888
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
• http://secunia.com/advisories/43068
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
• http://www.vupen.com/english/advisories/2011/0212
• http://support.apple.com/kb/HT5002
• http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
• http://www.ubuntu.com/usn/USN-1596-1
• http://www.ubuntu.com/usn/USN-1613-2
• http://www.ubuntu.com/usn/USN-1613-1
• http://secunia.com/advisories/51040
• http://secunia.com/advisories/50858
• http://www.ubuntu.com/usn/USN-1616-1
• http://secunia.com/advisories/51087
• http://secunia.com/advisories/51024

Related Security Bulletins

• Out-of-bounds write in Python
• Fedora EPEL 5 update for python26