CVE-2011-1833: linux linux_kernel
Vulnerability summary
CVE-2011-1833 is a low (CVSS 3.3) vulnerability in linux linux_kernel. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 29.5% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 3.3, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 1Timeline
- 03-10-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.36%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.36% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundLinux
Maturity: poc
Weaknesses
CWE · root cause- CWE-264Permissions, Privileges, and Access ControlsWeaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.
- CWE-362Concurrent Execution using Shared Resource with Improper SynchronizationThe product contains a concurrent code sequence that 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 operating concurrently.
Affected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- ecryptfs-utils< 92-1
Linux1 product
- linux_kernel≤ 3.0.44 | 3.0:rc1 | 3.0:rc2 | 3.0:rc3 | 3.0:rc4 | 3.0:rc5 | 3.0:rc6 | 3.0:rc7 | 3.0.1 | 3.0.2 | 3.0.3 | 3.0.4 | 3.0.5 | 3.0.6 | 3.0.7 | 3.0.8 | 3.0.9 | 3.0.10 | 3.0.11 | 3.0.12 | 3.0.13 | 3.0.14 | 3.0.15 | 3.0.16 | 3.0.17 | 3.0.18 | 3.0.19 | 3.0.20 | 3.0.21 | 3.0.22 | 3.0.23 | 3.0.24 | 3.0.25 | 3.0.26 | 3.0.27 | 3.0.28 | 3.0.29 | 3.0.30 | 3.0.31 | 3.0.32 | 3.0.33 | 3.0.34 | 3.0.35 | 3.0.36 | 3.0.37 | 3.0.38 | 3.0.39 | 3.0.40 | 3.0.41 | 3.0.42 | 3.0.43
2 vendors · 2 products
References
7 links- github.com/torvalds/linux/commit/764355487ea220fdc2faf128d577d7f679b91f97X Refsource CONFIRMExploitPatch
- git.kernel.orgX Refsource CONFIRM
- bugzilla.redhat.com/show_bug.cgi?id=731172X Refsource CONFIRM
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1X Refsource CONFIRM
