Input validation error in Linux kernel - CVE-2012-5532
Published: December 27, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43229
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-5532
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 (daemon exit) via a crafted application that sends a Netlink message.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-quantal (Ubuntu package)
Ubuntu
linux (Ubuntu package)
linux-lts-quantal (Ubuntu package)
How to mitigate CVE-2012-5532
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
linux (Ubuntu package) - addressed in versions 3.0.0-31.48, 3.2.0-36.57, 3.5.0-22.34
linux-lts-quantal (Ubuntu package) - update to 3.5.0-22.34~precise1
linux-lts-quantal (Ubuntu package) - update to 3.5.0-22.34~precise1
External References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=95a69adab9acfc3981c504737a2b6578e4d846ef
- http://rhn.redhat.com/errata/RHSA-2013-0807.html
- http://www.kernel.org/pub/linux/kernel/v3.x/testing/
- http://www.kernel.org/pub/linux/kernel/v3.x/testing/patch-3.8-rc1.bz2
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2012/11/27/12
- http://www.securityfocus.com/bid/56710
- https://bugzilla.novell.com/show_bug.cgi?id=761200
- https://bugzilla.redhat.com/show_bug.cgi?id=877572
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80337
- https://github.com/torvalds/linux/commit/95a69adab9acfc3981c504737a2b6578e4d846ef