SB2012070317 - Resource management error in Linux kernel
Published: July 3, 2012 Updated: August 11, 2020
Security Bulletin ID
SB2012070317
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2012-2133)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Use-after-free vulnerability in the Linux kernel before 3.3.6, when huge pages are enabled, allows local users to cause a denial of service (system crash) or possibly gain privileges by interacting with a hugetlbfs filesystem, as demonstrated by a umount operation that triggers improper handling of quota data.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=90481622d75715bfcb68501280a917dbfe516029
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
- http://www.debian.org/security/2012/dsa-2469
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.6
- http://www.openwall.com/lists/oss-security/2012/04/24/12
- http://www.securityfocus.com/bid/53233
- https://bugzilla.redhat.com/show_bug.cgi?id=817430
- https://exchange.xforce.ibmcloud.com/vulnerabilities/75168
- https://github.com/torvalds/linux/commit/90481622d75715bfcb68501280a917dbfe516029