PT-2014-2266 · Gnu+3 · Gnu C Library+3

Stefan Cornelius · Published 2012-07-18 · Updated 2019-04-22 · CVE-2012-3405

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions GNU C Library (aka glibc) versions 2.14 and other versions

Description The issue arises from a miscalculation of buffer length in the vfprintf function, allowing attackers to bypass format-string protection and cause a denial of service, resulting in a segmentation fault and crash. This occurs when a format string contains a large number of format specifiers, triggering desynchronization within the buffer size handling.

Recommendations For GNU C Library (aka glibc) versions 2.14 and other versions, consider disabling the vfprintf function as a temporary workaround until a patch is available. Restrict the use of format strings with multiple format specifiers to minimize the risk of exploitation.

Fix

DoS

Weakness Enumeration

CWE-189

Related Identifiers

CESA-2012_1098

CVE-2012-3405

DLA-165-1

DSA-3169-1

RHSA-2012:1098

RHSA-2012:1200

RHSA-2012_1098

SUSE-SU-2015:0551-1

Affected Products

Centos

Gnu C Library

Red Hat

Suse

References · 38

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-7424 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2012-3405 · Security Note
• https://security.gentoo.org/glsa/201503-04 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2012-3405 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2012-3405 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3169-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9402 · Security Note
• https://linux.oracle.com/errata/ELSA-2012-1098.html · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3406 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2012-3405 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/eglibc · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4043 · Security Note
• http://rhn.redhat.com/errata/RHSA-2012-1200.html · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1472 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3405 · Security Note