Python 2.7/3.2 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability has been found in Python 2.7/3.2 (Programming Language Software) and classified as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. The summary by CVE is:

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.

The weakness was presented 05/27/2010 (Website). It is possible to read the advisory at This vulnerability is known as CVE-2010-2089. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 53814 (CentOS 4 : python (CESA-2011:0491)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216004 (VMWare ESXi 4.1.0 Patch Release ESXi410-201201001 Missing (KB2009137)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (53814).






CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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Class: Memory corruption
CWE: CWE-119

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 53814
Nessus Name: CentOS 4 : python (CESA-2011:0491)
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OpenVAS ID: 880556
OpenVAS Name: CentOS Update for python CESA-2011:0491 centos4 i386
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Threat Intelligenceinfo

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Recommended: no mitigation known
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05/27/2010 🔍
05/27/2010 +0 days 🔍
05/27/2010 +0 days 🔍
05/27/2010 +0 days 🔍
06/14/2010 +18 days 🔍
07/07/2010 +23 days 🔍
03/19/2015 +1716 days 🔍
09/14/2021 +2371 days 🔍


Advisory: RHSA-2009:1625
Status: Confirmed
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CVE: CVE-2010-2089 (🔍)

Vulnerability Center: 26318 - Python 2.7 and 3.2 \x27audioop\x27 Module Remote Memory Corruption Vulnerability via Crafted Arguments, Medium
SecurityFocus: 40863 - Python 'audioop' Module Memory Corruption Vulnerability
Secunia: 40194


Created: 03/19/2015 12:22 PM
Updated: 09/14/2021 10:37 AM
Changes: 03/19/2015 12:22 PM (60), 02/28/2017 11:36 AM (9), 09/14/2021 10:26 AM (6), 09/14/2021 10:32 AM (1), 09/14/2021 10:37 AM (2)
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Cache ID: 100:429:40


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