Missing authorization in Linux kernel - CVE-2012-0055
Published: February 19, 2020 / Updated: June 20, 2024
Vulnerability identifier: #VU92771
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2012-0055
CWE-ID: CWE-862
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code.
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.
How to mitigate CVE-2012-0055
Install update from vendor's repository.
Sources
- 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