Vulnerability Details : CVE-2011-1833
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.
Products affected by CVE-2011-1833
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.27:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.30:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.23:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.20:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.15:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.12:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.37:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.38:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.33:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.7:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.29:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.24:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.22:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.17:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.14:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.35:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.36:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.31:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.21:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.18:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.13:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.10:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.39:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.40:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.26:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.32:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.28:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.8:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.19:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.16:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.11:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.34:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.41:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.42:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.43:*:*:*:*:*:*:*
Threat overview for CVE-2011-1833
Top countries where our scanners detected CVE-2011-1833
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2011-1833 139,907
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2011-1833!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2011-1833
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-1833
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-2011-1833
-
Assigned by: nvd@nist.gov (Primary)
-
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-1833
-
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
-
http://www.ubuntu.com/usn/USN-1188-1
USN-1188-1: eCryptfs vulnerabilities | Ubuntu security notices
-
https://github.com/torvalds/linux/commit/764355487ea220fdc2faf128d577d7f679b91f97
Ecryptfs: Add mount option to check uid of device being mounted = exp… · torvalds/linux@7643554 · GitHubExploit;Patch
-
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=764355487ea220fdc2faf128d577d7f679b91f97
kernel/git/torvalds/linux.git - Linux kernel source treePatch
-
http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html
[security-announce] SUSE-SU-2011:0898-1: important: Security update for
-
https://bugzilla.redhat.com/show_bug.cgi?id=731172
731172 – (CVE-2011-1833) CVE-2011-1833 kernel: ecryptfs: mount source TOCTOU race
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