Resource management error in Linux kernel - CVE-2013-2141

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Main Vulnerability Database Vulnerabilities #VU42798

Resource management error in Linux kernel - CVE-2013-2141

Published: June 7, 2013 / Updated: August 11, 2020


Vulnerability identifier: #VU42798
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-2141
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The do_tkill function in kernel/signal.c in the Linux kernel before 3.8.9 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel memory via a crafted application that makes a (1) tkill or (2) tgkill system call.


Affected software

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-quantal (Ubuntu package)
linux-lts-raring (Ubuntu package)

How to mitigate CVE-2013-2141

Install update from vendor's website.

linux (Ubuntu package) - addressed in versions 2.6.32-49.111, 3.2.0-44.69, 3.5.0-34.55, 3.8.0-22.33
linux-lts-quantal (Ubuntu package) - update to 3.5.0-34.55~precise1
linux-lts-raring (Ubuntu package) - update to 3.8.0-23.34~precise1

External References

Related Security Bulletins