Auth bypass in Linux Kernel
CVE-2012-0055
OverlayFS in the Linux kernel before 3.0.0-16.28, as used in Ubuntu 10.0.4 LTS and 11.10, is missing inode security checks which could allow attackers to bypass security restrictions and perform unauthorized actions.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (68.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Linux Kernel
- Linux Kernel Overlayfs — versions as used in Ubuntu 10.0.4 LTS and 11.10, before 3.0.0-16.28
- Canonical Ubuntu Linux — versions 10.04, 11.10
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2012/01/17/11 (mailing-list, Exploit, Patch, Mailing List, Third Party Advisory)
- bugzilla.suse.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- access.redhat.com/security/cve/cve-2012-0055 (Third Party Advisory)
- www.ubuntu.com/usn/USN-1363-1 (Third Party Advisory)
- www.ubuntu.com/usn/USN-1364-1 (Third Party Advisory)
- www.ubuntu.com/usn/USN-1384-1 (Third Party Advisory)
- bugs.launchpad.net/ubuntu/+source/linux/+bug/915941 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2012-0055?
- CVE-2012-0055 is a high-severity vulnerability in Linux Kernel, classified under Missing Authorization. CVSS score: 7.8/10. Published 2020-02-19.
- How severe is CVE-2012-0055?
- High severity. CVSS v3 base score is 7.8 out of 10.