SB2009120202 - Input validation error in Linux kernel
Published: December 2, 2009
Security Bulletin ID
SB2009120202
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) Input validation error (CVE-ID: CVE-2009-4026)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote attackers to cause a denial of service (panic) via a crafted Delete Block ACK (aka DELBA) packet, related to an erroneous 'code shuffling patch.'
Remediation
Install update from vendor's website.
References
- http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091201.gz
- http://www.openwall.com/lists/oss-security/2009/12/01/2
- http://www.securityfocus.com/bid/37170
- https://bugzilla.redhat.com/show_bug.cgi?id=541149
- http://secunia.com/advisories/38017
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
- http://www.ubuntu.com/usn/usn-864-1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=827d42c9ac91ddd728e4f4a31fefb906ef2ceff7