Vulnerability Monitor

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CVE-2011-1089

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.

Security Impact Summary

CVE-2011-1089 is a security vulnerability that . Impacting 1 product from gnu organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2011, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2011-04-10T02:55:01.367

Last Modified

2026-06-16T23:28:41.327

Status

Modified

Source

[email protected]

Severity

CVSSv2: 3.3 (LOW)

CVSSv2 Vector

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

Exploitability Score

3.4

Impact Score

4.9

Weaknesses

Type: Primary
CWE-16

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnu	glibc	≤ 2.13	Yes
Application	gnu	glibc	1.00	Yes
Application	gnu	glibc	1.01	Yes
Application	gnu	glibc	1.02	Yes
Application	gnu	glibc	1.03	Yes
Application	gnu	glibc	1.04	Yes
Application	gnu	glibc	1.05	Yes
Application	gnu	glibc	1.06	Yes
Application	gnu	glibc	1.07	Yes
Application	gnu	glibc	1.08	Yes
Application	gnu	glibc	1.09	Yes
Application	gnu	glibc	1.09.1	Yes
Application	gnu	glibc	2.0	Yes
Application	gnu	glibc	2.0.1	Yes
Application	gnu	glibc	2.0.2	Yes
Application	gnu	glibc	2.0.3	Yes
Application	gnu	glibc	2.0.4	Yes
Application	gnu	glibc	2.0.5	Yes
Application	gnu	glibc	2.0.6	Yes
Application	gnu	glibc	2.1	Yes
Application	gnu	glibc	2.1.1	Yes
Application	gnu	glibc	2.1.1.6	Yes
Application	gnu	glibc	2.1.2	Yes
Application	gnu	glibc	2.1.3	Yes
Application	gnu	glibc	2.1.3.10	Yes
Application	gnu	glibc	2.1.9	Yes
Application	gnu	glibc	2.2	Yes
Application	gnu	glibc	2.2.1	Yes
Application	gnu	glibc	2.2.2	Yes
Application	gnu	glibc	2.2.3	Yes
Application	gnu	glibc	2.2.4	Yes
Application	gnu	glibc	2.2.5	Yes
Application	gnu	glibc	2.3	Yes
Application	gnu	glibc	2.3.1	Yes
Application	gnu	glibc	2.3.2	Yes
Application	gnu	glibc	2.3.3	Yes
Application	gnu	glibc	2.3.4	Yes
Application	gnu	glibc	2.3.5	Yes
Application	gnu	glibc	2.3.6	Yes
Application	gnu	glibc	2.3.10	Yes
Application	gnu	glibc	2.4	Yes
Application	gnu	glibc	2.5	Yes
Application	gnu	glibc	2.5.1	Yes
Application	gnu	glibc	2.6	Yes
Application	gnu	glibc	2.6.1	Yes
Application	gnu	glibc	2.7	Yes
Application	gnu	glibc	2.8	Yes
Application	gnu	glibc	2.9	Yes
Application	gnu	glibc	2.10	Yes
Application	gnu	glibc	2.10.1	Yes
Application	gnu	glibc	2.10.2	Yes
Application	gnu	glibc	2.11	Yes
Application	gnu	glibc	2.11.1	Yes
Application	gnu	glibc	2.11.2	Yes
Application	gnu	glibc	2.11.3	Yes
Application	gnu	glibc	2.12.0	Yes
Application	gnu	glibc	2.12.1	Yes
Application	gnu	glibc	2.12.2	Yes

References

http://openwall.com/lists/oss-security/2011/03/04/10 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/04/11 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/04/12 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/04/9 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/05/3 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/05/7 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/07/9 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/14/16 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/14/5 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/14/7 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/15/6 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/22/4 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/22/6 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/31/3 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/03/31/4 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2011/04/01/2 Mailing List, Third Party Advisory ([email protected])
http://sourceware.org/bugzilla/show_bug.cgi?id=12625 Issue Tracking ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2011:178 Broken Link ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2011:179 Broken Link ([email protected])
http://www.redhat.com/support/errata/RHSA-2011-1526.html Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/46740 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=688980 Issue Tracking ([email protected])
http://openwall.com/lists/oss-security/2011/03/04/10 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/04/11 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/04/12 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/04/9 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/05/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/05/7 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/07/9 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/14/16 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/14/5 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/14/7 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/15/6 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/22/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/22/6 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/31/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/03/31/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/04/01/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://sourceware.org/bugzilla/show_bug.cgi?id=12625 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2011:178 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2011:179 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2011-1526.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/46740 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=688980 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For gnu's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.