CVE-2011-1831

Severity: medium (CVSS 4.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-02-15 · updated 2026-06-16
Weakness: CWE-264

Description

utils/mount.ecryptfs_private.c in ecryptfs-utils before 90 does not properly check mountpoint permissions, which allows local users to effectively replace any directory with a new filesystem, and consequently gain privileges, via a mount system call.

Affected products

Ecryptfs-Utils: through 89; 62, 63, 64, 65, 66, 67 (+20)
Ecryptfs Utils: 58, 59, 60, 61

References

http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html
http://www.ubuntu.com/usn/USN-1188-1
https://bugzilla.redhat.com/show_bug.cgi?id=729465
https://launchpad.net/ecryptfs/+download
http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html
http://www.ubuntu.com/usn/USN-1188-1
https://bugzilla.redhat.com/show_bug.cgi?id=729465
https://launchpad.net/ecryptfs/+download

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