CVE-2011-1833

Severity: low (CVSS 3.3 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: yes
Published: 2012-10-03 · updated 2026-06-16
Weakness: CWE-264

Description

Race condition in the ecryptfs_mount function in fs/ecryptfs/main.c in the eCryptfs subsystem in the Linux kernel before 3.1 allows local users to bypass intended file permissions via a mount.ecryptfs_private mount with a mismatched uid.

Affected products

Linux kernel: through 3.0.44; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+44)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=764355487ea220fdc2faf128d577d7f679b91f97
http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
http://www.ubuntu.com/usn/USN-1188-1
https://bugzilla.redhat.com/show_bug.cgi?id=731172
https://github.com/torvalds/linux/commit/764355487ea220fdc2faf128d577d7f679b91f97
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=764355487ea220fdc2faf128d577d7f679b91f97
http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
http://www.ubuntu.com/usn/USN-1188-1
https://bugzilla.redhat.com/show_bug.cgi?id=731172
https://github.com/torvalds/linux/commit/764355487ea220fdc2faf128d577d7f679b91f97

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