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.
Does this matter?
A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 1.2%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.24% probability · 69th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 17 January 2012
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- linux/linux kernel · canonical/ubuntu linux
- Source
- secalert@redhat.com
EPSS 1.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.openwall.com/lists/oss-security/2012/01/17/11Exploit, Mailing List, Patch, Third Party Advisory
- http://www.ubuntu.com/usn/USN-1363-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1364-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1384-1Third Party Advisory
- https://access.redhat.com/security/cve/cve-2012-0055Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/915941Exploit, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-0055Issue Tracking, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2012/01/17/11Exploit, Mailing List, Patch, Third Party Advisory
- http://www.ubuntu.com/usn/USN-1363-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1364-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1384-1Third Party Advisory
- https://access.redhat.com/security/cve/cve-2012-0055Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/915941Exploit, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-0055Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.