Input validation error in Glibc - CVE-2012-0864
Published: May 2, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU42853
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-0864
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
Glibc
Glibc
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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.
How to mitigate CVE-2012-0864
Install update from vendor's website.
Sources
- http://rhn.redhat.com/errata/RHSA-2012-0393.html
- http://rhn.redhat.com/errata/RHSA-2012-0397.html
- http://rhn.redhat.com/errata/RHSA-2012-0488.html
- http://rhn.redhat.com/errata/RHSA-2012-0531.html
- http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=7c1f4834d398163d1ac8101e35e9c36fc3176e6e
- http://sourceware.org/ml/libc-alpha/2012-02/msg00023.html
- http://www.phrack.org/issues.html?issue=67&id=9#article
- http://www.securityfocus.com/bid/52201
- https://bugzilla.redhat.com/show_bug.cgi?id=794766