Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 11 | python2.7 | 2.7-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | python +4 | 2.4.3-43.el5 | RHSA-2011:0027 |
| RHEL 4 | python +4 | 2.3.4-14.10.el4 | RHSA-2011:0491 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- Python 3.2 - 'audioop' Module Memory Corruption EDB-34145 · dos · Jun 14, 2010 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- RHSA-2011:0491 Red Hat Security Advisory: python security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:0027 Red Hat Security Advisory: python security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- https://bugzilla.redhat.com/show_bug.cgi?id=598197
- 43068 third-party-advisory
- FEDORA-2010-9652 vendor-advisory
- 51087 third-party-advisory
- ADV-2011-0212 vdb-entry
- USN-1616-1 vendor-advisory
- 51040 third-party-advisory
- ADV-2010-1448 vdb-entry
- 50858 third-party-advisory
- 40863 vdb-entry
- http://bugs.python.org/issue7673
- APPLE-SA-2011-10-12-3 vendor-advisory
- ADV-2011-0122 vdb-entry
- SUSE-SR:2011:002 vendor-advisory
- 42888 third-party-advisory
- USN-1596-1 vendor-advisory
- 40194 third-party-advisory
- RHSA-2011:0027 vendor-advisory
- USN-1613-2 vendor-advisory
- http://support.apple.com/kb/HT5002
- SUSE-SR:2010:024 vendor-advisory
- 51024 third-party-advisory
- USN-1613-1 vendor-advisory