Buffer overflow in Linux kernel - CVE-2013-2234

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Main Vulnerability Database Vulnerabilities #VU42752

Buffer overflow in Linux kernel - CVE-2013-2234

Published: July 5, 2013 / Updated: August 11, 2020


Vulnerability identifier: #VU42752
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-2013-2234
CWE-ID: CWE-119
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 (1) key_notify_sa_flush and (2) key_notify_policy_flush functions in net/key/af_key.c in the Linux kernel before 3.10 do not initialize certain structure members, which allows local users to obtain sensitive information from kernel heap memory by reading a broadcast message from the notify interface of an IPSec key_socket.


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-2013-2234

Install update from vendor's website.

linux (Ubuntu package) - addressed in versions 2.6.32-50.112, 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