CVE-2011-3145: mount.ecrpytfs_private sets group owner of /etc/mtab to user's primary group
Vulnerability summary
CVE-2011-3145 is a critical (CVSS 9.8) 7PK - Security Features vulnerability in mount.ecrpytfs_private_project mount.ecrpytfs_private. EPSS estimates a 0.98% chance of exploitation in the next 30 days, higher than 62.2% of scored vulnerabilities.
Not severe (CVSS 3.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 22-04-2019PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
When mount.ecrpytfs_private before version 87-0ubuntu1.2 calls setreuid() it doesn't also set the effective group id. So when it creates the new version, mtab.tmp, it's created with the group id of the user running mount.ecryptfs_private.
CVSS metrics
4 scores · 3 sources · 2 versions- CVE.orgCNA3.8LowCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:LDiffers
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.98%
Chance of exploitation in the next 30 days
Percentile
62%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.98% 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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- ecryptfs-utils< 92-1
Mount.ecrpytfs_private_project1 product
2 vendors · 2 products
