CVE-2012-3406

EPSS 0.87%

eglibc - security update

Published: 2/10/2014Modified: 3/9/2026
Also known as:DSA-3169-1DEBIAN-CVE-2012-3406

Description

The vfprintf function in stdio-common/vfprintf.c in GNU C Library (aka glibc) 2.5, 2.12, and probably other versions does not "properly restrict the use of" the alloca function when allocating the SPECS array, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (crash) or possibly execute arbitrary code via a crafted format string using positional parameters and a large number of format specifiers, a different vulnerability than CVE-2012-3404 and CVE-2012-3405.

Affected packages (2)

References (1)