Vulnerability Details : 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.
Products affected by CVE-2011-1089
- cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.1.3.10:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.2:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.3:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.1.1.6:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.1.9:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.3.10:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.4:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.5:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.6:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.8:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.9:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.10:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.7:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.04:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.03:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.09:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.08:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.07:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.00:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.02:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.01:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.06:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.05:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:1.09.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.10.2:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.10.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.11:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.11.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.12.0:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.12.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.11.3:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.11.2:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.12.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-1089
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-1089
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.3
|
LOW | AV:L/AC:M/Au:N/C:P/I:P/A:N |
3.4
|
4.9
|
NIST |
CWE ids for CVE-2011-1089
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-1089
-
http://openwall.com/lists/oss-security/2011/03/04/9
oss-security - Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/03/05/3
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/03/04/11
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://www.redhat.com/support/errata/RHSA-2011-1526.html
SupportThird Party Advisory
-
http://openwall.com/lists/oss-security/2011/03/04/12
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://sourceware.org/bugzilla/show_bug.cgi?id=12625
12625 – (CVE-2011-1089) mntent operations provide no indication of failure due to RLIMIT_FSIZE (CVE-2011-1089)Issue Tracking
-
http://openwall.com/lists/oss-security/2011/03/31/4
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/03/15/6
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/03/22/6
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/03/31/3
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/03/14/7
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://www.mandriva.com/security/advisories?name=MDVSA-2011:179
mandriva.comBroken Link
-
http://openwall.com/lists/oss-security/2011/03/05/7
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://www.securityfocus.com/bid/46740
GNU glibc 'addmntent()' Mount Helper Local Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
http://openwall.com/lists/oss-security/2011/03/04/10
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/04/01/2
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://www.mandriva.com/security/advisories?name=MDVSA-2011:178
mandriva.comBroken Link
-
http://openwall.com/lists/oss-security/2011/03/14/16
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/03/14/5
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=688980
688980 – (CVE-2011-1089) CVE-2011-1089 glibc: Suid mount helpers fail to anticipate RLIMIT_FSIZEIssue Tracking
-
http://openwall.com/lists/oss-security/2011/03/07/9
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/03/22/4
oss-security - Re: Suid mount helpers fail to anticipate RLIMIT_FSIZEMailing List;Third Party Advisory
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