Input validation error in Linux kernel - CVE-2009-4026
Published: December 2, 2009 / Updated: February 13, 2023
Vulnerability identifier: #VU93720
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2009-4026
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.'
How to mitigate CVE-2009-4026
Install update from vendor's website.
Sources
- 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