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CVE-2011-1089

15
FAUCET Score

CVE-2011-1089 describes a flaw in the GNU C Library (glibc) versions 2.13 and earlier, where the addmntent function fails to report errors when writing to the /etc/mtab file. This oversight allows local users to corrupt the file, particularly when a process has a restricted file size limit. The vulnerability has a low CVSS score of 3.3, indicating a local attack vector with medium complexity and potential for partial confidentiality and integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.13CPE matchmatch criteria
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
1.00CPE matchmatch criteria
cpe:2.3:a:gnu:glibc:1.00:*:*:*:*:*:*:*
1.01CPE matchmatch criteria
cpe:2.3:a:gnu:glibc:1.01:*:*:*:*:*:*:*
1.02CPE matchmatch criteria
cpe:2.3:a:gnu:glibc:1.02:*:*:*:*:*:*:*
1.03CPE matchmatch criteria
cpe:2.3:a:gnu:glibc:1.03:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.3LOW

AV:L/AC:M/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 79th percentile among its peer group of 747 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: glibc-0:2.3.4-2.57
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: glibc-0:2.5-65.el5_7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: glibc-0:2.12-1.47.el6
View patch

Vendor Advisories (1)

redhatCVE-2011-1089Low

glibc: Suid mount helpers fail to anticipate RLIMIT_FSIZE

Mar 3, 2011

References

openwall.com / lists/oss-security/2011/03/04/10
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/04/11
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/04/12
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/04/9
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/05/3
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/05/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/07/9
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/14/16
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/14/5
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/14/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/15/6
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/22/4
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/22/6
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/31/3
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/31/4
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/01/2
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
sourceware.org / bugzilla/show_bug.cgi
Issue Tracking
mandriva.com / security/advisories
Broken Link
mandriva.com / security/advisories
Broken Link
redhat.com / support/errata/RHSA-2011-1526.html
Third Party Advisory
securityfocus.com / bid/46740
Third Party AdvisoryVDB Entry