Security restrictions bypass in Linux kernel - CVE-2013-1060
Published: September 25, 2013 / Updated: October 2, 2013
Vulnerability identifier: #VU92809
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:U/U:Clear
CVE-ID: CVE-2013-1060
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code.
A certain Ubuntu build procedure for perf, as distributed in the Linux kernel packages in Ubuntu 10.04 LTS, 12.04 LTS, 12.10, 13.04, and 13.10, sets the HOME environment variable to the ~buildd directory and consequently reads the system configuration file from the ~buildd directory, which allows local users to gain privileges by leveraging control over the buildd account.
How to mitigate CVE-2013-1060
Install update from vendor's repository.
Sources
- http://people.canonical.com/~ubuntu-security/cve/2013/CVE-2013-1060.html
- http://www.ubuntu.com/usn/USN-1938-1
- http://www.ubuntu.com/usn/USN-1939-1
- http://www.ubuntu.com/usn/USN-1941-1
- http://www.ubuntu.com/usn/USN-1942-1
- http://www.ubuntu.com/usn/USN-1943-1
- http://www.ubuntu.com/usn/USN-1944-1
- http://www.ubuntu.com/usn/USN-1945-1
- http://www.ubuntu.com/usn/USN-1946-1
- http://www.ubuntu.com/usn/USN-1947-1
- https://launchpad.net/bugs/1206200
- https://lists.ubuntu.com/archives/kernel-team/2013-July/031248.html
- https://lists.ubuntu.com/archives/kernel-team/2013-July/031249.html