CVE-2012-3405

glibc - Denial of Service via Format String with Large Number of Specifiers

Title source: llm
STIX 2.1

Description

The vfprintf function in stdio-common/vfprintf.c in libc in GNU C Library (aka glibc) 2.14 and other versions does not properly calculate a buffer length, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (segmentation fault and crash) via a format string with a large number of format specifiers that triggers "desynchronization within the buffer size handling," a different vulnerability than CVE-2012-3404.

References (7)

Core 7
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2012-1200.html
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=833704
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201503-04
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2012-1098.html
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1589-1
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2012/07/11/17

Scores

EPSS 0.0067
EPSS Percentile 71.5%

Details

CWE
CWE-189
Status published
Products (8)
canonical/ubuntu_linux 8.04
canonical/ubuntu_linux 10.04
canonical/ubuntu_linux 11.04
canonical/ubuntu_linux 11.10
canonical/ubuntu_linux 12.04
gnu/glibc 2.14
redhat/enterprise_linux 6.0
redhat/enterprise_virtualization 3.0
Published Feb 10, 2014
Tracked Since Feb 18, 2026