CVE Database


Impact: Moderate
Public: 2010-11-17
Bugzilla: 794766: CVE-2012-0864 glibc: FORTIFY_SOURCE format string protection bypass via "nargs" integer overflow
IAVA: 2012-A-0148


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 and NIST NVD.

CVSS v2 metrics

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
RHEV Hypervisor for RHEL-5 (rhev-hypervisor5) RHSA-2012:0488 April 17, 2012
RHEV Hypervisor for RHEL-6 (rhev-hypervisor6) RHSA-2012:0531 April 30, 2012
Red Hat Enterprise Linux version 5 (glibc) RHSA-2012:0397 March 19, 2012
Red Hat Enterprise Linux version 6 (glibc) RHSA-2012:0393 March 15, 2012

External References

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For clarification or corrections please contact the Red Hat Security Response Team.