CVE-2011-1089
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. Limited direct impact.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.4% in the next 30 days (EPSS).
- Severity: 3.3 LOW (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-16
- Record status
- Modified
Affected
- Gnu Glibc ≤ 2.13
- Gnu Glibc 1.00
- Gnu Glibc 1.01
- Gnu Glibc 1.02
- Gnu Glibc 1.03
- Gnu Glibc 1.04
- Gnu Glibc 1.05
- Gnu Glibc 1.06
Attack profile CVSS 2.0 · 3.3
- Attack vector
- Local
- Complexity
- Medium
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
Raw vector
AV:L/AC:M/Au:N/C:P/I:P/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2011-1089.md and follow it. Check whether this project is affected by CVE-2011-1089. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- http://openwall.com/lists/oss-security/2011/03/04/10
- http://openwall.com/lists/oss-security/2011/03/04/11
- http://openwall.com/lists/oss-security/2011/03/04/12
- http://openwall.com/lists/oss-security/2011/03/04/9
- http://openwall.com/lists/oss-security/2011/03/05/3
- http://openwall.com/lists/oss-security/2011/03/05/7
- http://openwall.com/lists/oss-security/2011/03/07/9
- http://openwall.com/lists/oss-security/2011/03/14/16
- http://openwall.com/lists/oss-security/2011/03/14/5
- http://openwall.com/lists/oss-security/2011/03/14/7
- http://openwall.com/lists/oss-security/2011/03/15/6
- http://openwall.com/lists/oss-security/2011/03/22/4
- http://openwall.com/lists/oss-security/2011/03/22/6
- http://openwall.com/lists/oss-security/2011/03/31/3
- http://openwall.com/lists/oss-security/2011/03/31/4
- http://openwall.com/lists/oss-security/2011/04/01/2
- http://sourceware.org/bugzilla/show_bug.cgi?id=12625
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:178
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:179
- http://www.redhat.com/support/errata/RHSA-2011-1526.html
- http://www.securityfocus.com/bid/46740
- https://bugzilla.redhat.com/show_bug.cgi?id=688980
- http://openwall.com/lists/oss-security/2011/03/04/10
- http://openwall.com/lists/oss-security/2011/03/04/11
- http://openwall.com/lists/oss-security/2011/03/04/12