CVE-2012-0055 EXPLOIT
7.8
HIGH · CVSS 3.1 · EPSS 1.2% (pctl 68)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 1.24% — more likely to be exploited than 68% of all CVEs |
| Weakness | CWE-862 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2020-02-19 |
| Last modified | 2026-06-16 |
Affected (2)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | OverlayFS inode Security Checks - 'inode.c' Local Security Bypass | 2012-01-17 |
References
- http://www.openwall.com/lists/oss-security/2012/01/17/11
- http://www.ubuntu.com/usn/USN-1363-1
- http://www.ubuntu.com/usn/USN-1364-1
- http://www.ubuntu.com/usn/USN-1384-1
- https://access.redhat.com/security/cve/cve-2012-0055
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/915941
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-0055
- http://www.openwall.com/lists/oss-security/2012/01/17/11
- http://www.ubuntu.com/usn/USN-1363-1
- http://www.ubuntu.com/usn/USN-1364-1
- http://www.ubuntu.com/usn/USN-1384-1
- https://access.redhat.com/security/cve/cve-2012-0055
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/915941
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-0055
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