CVE-2011-1089 Other in n/a
Local attackers can corrupt the /etc/mtab file by exploiting missing error handling in glibc's addmntent function, potentially affecting system stability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-1089?
CVE-2011-1089 is a low-severity vulnerability in Gnu Glibc, published on 10 Apr 2011. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-16
Which versions are affected by CVE-2011-1089?
It affects 1 product.
Products include Gnu Glibc.
How do I fix CVE-2011-1089?
Upgrade to a fixed version.
Is CVE-2011-1089 being exploited?
There is no known exploitation of CVE-2011-1089 in the wild and no public exploit code.
Other vulnerabilities in Gnu Glibc
Sources
Also known as DEBIAN-CVE-2011-1089, GHSA-h832-96qp-642g.