Heap-based buffer overflow in Libxml2 - CVE-2011-1944

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Main Vulnerability Database Vulnerabilities #VU32853

Heap-based buffer overflow in Libxml2 - CVE-2011-1944

Published: September 2, 2011 / Updated: July 29, 2020


Vulnerability identifier: #VU32853
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2011-1944
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vendor: Gnome Development Team
Affected software:
Libxml2

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Integer overflow in xpath.c in libxml2 2.6.x through 2.6.32 and 2.7.x through 2.7.8, and libxml 1.8.16 and earlier,. A remote attacker can use a crafted XML file that triggers a heap-based buffer overflow when adding a new namespace node to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2011-1944

Update to version 2.7.0.

Sources