Privilege escalation in Ecryptfs Ecryptfs-Utils
CVE-2016-1572
mount.ecryptfs_private.c in eCryptfs-utils does not validate mount destination filesystem types, which allows local users to gain privileges by mounting over a nonstandard filesystem, as demonstrated by /proc/$pid.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (28.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Ecryptfs Ecryptfs-Utils
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.04
- Debian Linux — versions 7.0, 8.0
- Fedoraproject Fedora — versions 22, 23
- openSUSE Leap — versions 42.1
- openSUSE — versions 13.1, 13.2
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-updates/2016-01/msg00091.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.securitytracker.com/id/1034791 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- lists.opensuse.org/opensuse-updates/2016-01/msg00118.html (vendor-advisory, Mailing List, Third Party Advisory)
- bugs.launchpad.net/ecryptfs/+bug/1530566 (Patch, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2016/01/20/6 (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-updates/2016-02/msg00004.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.ubuntu.com/usn/USN-2876-1 (vendor-advisory, Patch, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2016-February/177396.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.debian.org/security/2016/dsa-3450 (vendor-advisory, Patch, Third Party Advisory)
- bazaar.launchpad.net/~ecryptfs/ecryptfs/trunk/revision/870 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-1572?
- CVE-2016-1572 is a high-severity vulnerability in Ecryptfs Ecryptfs-Utils, classified under Improper Privilege Management. CVSS score: 8.4/10. Published 2016-01-22.
- How severe is CVE-2016-1572?
- High severity. CVSS v3 base score is 8.4 out of 10.