Security restrictions bypass in Linux kernel - CVE-2013-1060

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Main Vulnerability Database Vulnerabilities #VU92809

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: 8.5 [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]
CVE-ID: CVE-2013-1060
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-quantal (Ubuntu package)
linux-lts-raring (Ubuntu package)
linux-image-3.8.0-30-generic (Ubuntu package)

How to mitigate CVE-2013-1060

Install update from vendor's repository.

linux (Ubuntu package) - addressed in versions 2.6.32-51.113, 3.2.0-53.81, 3.5.0-40.62
linux-lts-quantal (Ubuntu package) - update to 3.5.0-40.62~precise1
linux-lts-raring (Ubuntu package) - update to 3.8.0-30.44~precise1
linux-image-3.8.0-30-generic (Ubuntu package) - update to 3.8.0-30.44

External References

Related Security Bulletins