CVE-2009-4026

Description

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."

7.8

CVSS

Severity: High

CVSS 2.0 •

EPSS 1.29% Top 25%

Vendor Advisory ubuntu.com Vendor Advisory opensuse.org

Affected: n/a n/a

References

Link	Tags
http://www.securityfocus.com/bid/37170	vdb entry
http://www.ubuntu.com/usn/usn-864-1	vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html	vendor advisory
http://www.openwall.com/lists/oss-security/2009/12/01/2	mailing list
https://bugzilla.redhat.com/show_bug.cgi?id=541149
http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091201.gz	patch
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=827d42c9ac91ddd728e4f4a31fefb906ef2ceff7
http://secunia.com/advisories/38017	third party advisory

Frequently Asked Questions

What is the severity of CVE-2009-4026?: CVE-2009-4026 has been scored as a high severity vulnerability.
How to fix CVE-2009-4026?: To fix CVE-2009-4026, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-4026 being actively exploited in the wild?: It is possible that CVE-2009-4026 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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