Description

The addmntent function in the GNU C Library (aka glibc or libc6) 2.13 and earlier does not report an error status for failed attempts to write to the /etc/mtab file, which makes it easier for local users to trigger corruption of this file, as demonstrated by writes from a process with a small RLIMIT_FSIZE value, a different vulnerability than CVE-2010-0296.

References

http://openwall.com/lists/oss-security/2011/03/04/10

http://openwall.com/lists/oss-security/2011/03/04/11

http://openwall.com/lists/oss-security/2011/03/04/12

http://openwall.com/lists/oss-security/2011/03/04/9

http://openwall.com/lists/oss-security/2011/03/05/3

http://openwall.com/lists/oss-security/2011/03/05/7

http://openwall.com/lists/oss-security/2011/03/07/9

http://openwall.com/lists/oss-security/2011/03/14/16

http://openwall.com/lists/oss-security/2011/03/14/5

http://openwall.com/lists/oss-security/2011/03/14/7

http://openwall.com/lists/oss-security/2011/03/15/6

http://openwall.com/lists/oss-security/2011/03/22/4

http://openwall.com/lists/oss-security/2011/03/22/6

http://openwall.com/lists/oss-security/2011/03/31/3

http://openwall.com/lists/oss-security/2011/03/31/4

http://openwall.com/lists/oss-security/2011/04/01/2

http://sourceware.org/bugzilla/show_bug.cgi?id=12625

http://www.mandriva.com/security/advisories?name=MDVSA-2011:178

http://www.mandriva.com/security/advisories?name=MDVSA-2011:179

http://www.redhat.com/support/errata/RHSA-2011-1526.html

http://www.securityfocus.com/bid/46740

https://bugzilla.redhat.com/show_bug.cgi?id=688980

Details

Risk Information

CVSS v2