Public Date:
794766: CVE-2012-0864 glibc: FORTIFY_SOURCE format string protection bypass via "nargs" integer overflow

The MITRE CVE dictionary describes this issue as:

Integer overflow in the vfprintf function in stdio-common/vfprintf.c in glibc 2.14 and other versions allows context-dependent attackers to bypass the FORTIFY_SOURCE protection mechanism, conduct format string attacks, and write to arbitrary memory via a large number of arguments.

Find out more about CVE-2012-0864 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 6.8
Base Metrics AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (glibc) RHSA-2012:0393 2012-03-15
RHEV Hypervisor for RHEL-6 (rhev-hypervisor6) RHSA-2012:0531 2012-04-30
Red Hat Enterprise Virtualization Hypervisor 5 (rhev-hypervisor5) RHSA-2012:0488 2012-04-17
Red Hat Enterprise Linux version 5 (glibc) RHSA-2012:0397 2012-03-19

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 4 glibc Will not fix