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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2014-02-10T17:00:00

Updated: 2024-08-06T20:05:12.465Z

Reserved: 2012-06-14T00:00:00

Link: CVE-2012-3406

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2014-02-10T18:15:10.120

Modified: 2019-04-22T17:48:00.643

Link: CVE-2012-3406

cve-icon Redhat

Severity : Moderate

Publid Date: 2012-07-11T00:00:00Z

Links: CVE-2012-3406 - Bugzilla