Public Date:
2012-A-0148, 2012-A-0153
688980: CVE-2011-1089 glibc: Suid mount helpers fail to anticipate RLIMIT_FSIZE

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2011-1089 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 3.3
Base Metrics AV:L/AC:M/Au:N/C:P/I:P/A:N
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None

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 6 (glibc) RHSA-2011:1526 2011-12-05
Red Hat Enterprise Linux 4 (glibc) RHSA-2012:0125 2012-02-13
Red Hat Enterprise Linux 5 (glibc) RHSA-2012:0126 2012-02-13


Red Hat would like to thank Dan Rosenberg for reporting this issue.
Last Modified

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