Input validation error in Linux kernel - CVE-2012-3511

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Main Vulnerability Database Vulnerabilities #VU43439

Input validation error in Linux kernel - CVE-2012-3511

Published: October 4, 2012 / Updated: August 11, 2020


Vulnerability identifier: #VU43439
CSH Severity: Medium
CVSS v4: 7.5 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-3511
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows local users to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (use-after-free and system crash) via vectors involving a (1) munmap or (2) close system call.


Affected software

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-backport-natty (Ubuntu package)
linux-lts-backport-oneiric (Ubuntu package)

How to mitigate CVE-2012-3511

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

linux (Ubuntu package) - addressed in versions 2.6.32-43.97, 2.6.38-16.67, 3.0.0-24.40, 3.2.0-29.46
linux-lts-backport-natty (Ubuntu package) - update to 2.6.38-16.67~lucid1
linux-lts-backport-oneiric (Ubuntu package) - update to 3.0.0-24.40~lucid1

External References

Related Security Bulletins