CVE-2011-1089 json
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 wr…
published 2011-04-10 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1103
- cvss
- 3.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- glibc Debian 14, Debian 13, Debian 12 2.13-8
debian advisories DEBIAN-CVE-2011-1089
- glibc RHEL 5 2.5-65.el5_7.3
- nscd RHEL 5 2.5-65.el5_7.3
- glibc-utils RHEL 5 2.5-65.el5_7.3
- glibc-common RHEL 5 2.5-65.el5_7.3
- glibc-debuginfo-common RHEL 5 2.5-65.el5_7.3
- glibc RHEL 4 2.3.4-2.57
- nscd RHEL 4 2.3.4-2.57
- glibc-utils RHEL 4 2.3.4-2.57
red hat advisories RHSA-2012:0126RHSA-2012:0125RHSA-2011:1526
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2011-1089 updated cvss 3.3
glibc: Suid mount helpers fail to anticipate RLIMIT_FSIZE
-
Red Hat Enterprise Linux (v. 5 server) nscd 2.5-65.el5_7.3, glibc 2.5-65.el5_7.3, glibc-utils 2.5-65.el5_7.3, glibc-common 2.5-65.el5_7.3, glibc-debuginfo-common 2.5-65.el5_7.3fixed: vendor fix RHSA-2012:0126
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Red Hat Enterprise Linux AS version 4 nscd 2.3.4-2.57, glibc 2.3.4-2.57, glibc-utils 2.3.4-2.57, glibc-common 2.3.4-2.57, glibc-profile 2.3.4-2.57, glibc-debuginfo-common 2.3.4-2.57fixed: vendor fix RHSA-2012:0125
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Red Hat Enterprise Linux Desktop (v. 5 client) nscd 2.5-65.el5_7.3, glibc 2.5-65.el5_7.3, glibc-utils 2.5-65.el5_7.3, glibc-common 2.5-65.el5_7.3, glibc-debuginfo-common 2.5-65.el5_7.3fixed: vendor fix RHSA-2012:0126
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Red Hat Enterprise Linux Desktop (v. 6) nscd 2.12-1.47.el6, glibc 2.12-1.47.el6, glibc-utils 2.12-1.47.el6, glibc-common 2.12-1.47.el6, glibc-debuginfo-common 2.12-1.47.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) nscd 2.12-1.47.el6, glibc 2.12-1.47.el6, glibc-utils 2.12-1.47.el6, glibc-common 2.12-1.47.el6, glibc-debuginfo-common 2.12-1.47.el6fixed: vendor fix RHSA-2011:1526
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Red Hat Enterprise Linux Desktop version 4 nscd 2.3.4-2.57, glibc 2.3.4-2.57, glibc-utils 2.3.4-2.57, glibc-common 2.3.4-2.57, glibc-profile 2.3.4-2.57, glibc-debuginfo-common 2.3.4-2.57 Red Hat Enterprise Linux ES version 4 nscd 2.3.4-2.57, glibc 2.3.4-2.57, glibc-utils 2.3.4-2.57, glibc-common 2.3.4-2.57, glibc-profile 2.3.4-2.57, glibc-debuginfo-common 2.3.4-2.57fixed: vendor fix RHSA-2012:0125
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Red Hat Enterprise Linux HPC Node (v. 6) nscd 2.12-1.47.el6, glibc 2.12-1.47.el6, glibc-utils 2.12-1.47.el6, glibc-common 2.12-1.47.el6, glibc-debuginfo-common 2.12-1.47.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) nscd 2.12-1.47.el6, glibc 2.12-1.47.el6, glibc-utils 2.12-1.47.el6, glibc-common 2.12-1.47.el6, glibc-debuginfo-common 2.12-1.47.el6 Red Hat Enterprise Linux Server (v. 6) nscd 2.12-1.47.el6, glibc 2.12-1.47.el6, glibc-utils 2.12-1.47.el6, glibc-common 2.12-1.47.el6, glibc-debuginfo-common 2.12-1.47.el6 Red Hat Enterprise Linux Server Optional (v. 6) nscd 2.12-1.47.el6, glibc 2.12-1.47.el6, glibc-utils 2.12-1.47.el6, glibc-common 2.12-1.47.el6, glibc-debuginfo-common 2.12-1.47.el6 Red Hat Enterprise Linux Workstation (v. 6) nscd 2.12-1.47.el6, glibc 2.12-1.47.el6, glibc-utils 2.12-1.47.el6, glibc-common 2.12-1.47.el6, glibc-debuginfo-common 2.12-1.47.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) nscd 2.12-1.47.el6, glibc 2.12-1.47.el6, glibc-utils 2.12-1.47.el6, glibc-common 2.12-1.47.el6, glibc-debuginfo-common 2.12-1.47.el6fixed: vendor fix RHSA-2011:1526
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Red Hat Enterprise Linux WS version 4 nscd 2.3.4-2.57, glibc 2.3.4-2.57, glibc-utils 2.3.4-2.57, glibc-common 2.3.4-2.57, glibc-profile 2.3.4-2.57, glibc-debuginfo-common 2.3.4-2.57fixed: vendor fix RHSA-2012:0125
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 3.3 | AV:L/AC:M/Au:N/C:P/I:P/A:N |
Classification
- Weakness
-
- CWE-16 Configuration
References
-
mandriva.com
/security/advisories?name=MDVSA-2011:178
vendor-advisory, broken-link
-
mandriva.com
/security/advisories?name=MDVSA-2011:179
vendor-advisory, broken-link
-
redhat.com
/support/errata/RHSA-2011-1526.html
vendor-advisory, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/14/5
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/04/9
mailing-list, third-party-advisory
-
sourceware.org
/bugzilla/show_bug.cgi?id=12625
issue-tracking
-
openwall.com
/lists/oss-security/2011/03/22/6
mailing-list, third-party-advisory
-
securityfocus.com
/bid/46740
vdb-entry, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/22/4
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/05/7
mailing-list, third-party-advisory
-
bugzilla.redhat.com
/show_bug.cgi?id=688980
issue-tracking
-
openwall.com
/lists/oss-security/2011/03/07/9
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/04/01/2
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/04/10
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/14/16
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/31/4
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/04/12
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/14/7
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/04/11
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/05/3
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/31/3
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2011/03/15/6
mailing-list, third-party-advisory
Sources
- CVE List CVE-2011-1089
- NVD CVE-2011-1089
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.