CVE-2009-2844

Linux kernel < 2.6.31-rc6 - Denial of Service via Malformed Beacon Frames in cfg80211

Title source: llm
STIX 2.1

Description

cfg80211 in net/wireless/scan.c in the Linux kernel 2.6.30-rc1 and other versions before 2.6.31-rc6 allows remote attackers to cause a denial of service (crash) via a sequence of beacon frames in which one frame omits an SSID Information Element (IE) and the subsequent frame contains an SSID IE, which triggers a NULL pointer dereference in the cmp_ies function. NOTE: a potential weakness in the is_mesh function was also addressed, but the relevant condition did not exist in the code, so it is not a vulnerability.

References (7)

Core 7
Core References
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/36278
Patch mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/08/17/2
Patch mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/08/17/1
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/36052

Scores

EPSS 0.0336
EPSS Percentile 87.6%

Details

CWE
CWE-399
Status published
Products (50)
linux/kernel 2.6.24.7
linux/kernel 2.6.25.15
linux/linux_kernel 2.6
linux/linux_kernel 2.6.0
linux/linux_kernel 2.6.1
linux/linux_kernel 2.6.10
linux/linux_kernel 2.6.11
linux/linux_kernel 2.6.11.1
linux/linux_kernel 2.6.11.2
linux/linux_kernel 2.6.11.3
... and 40 more
Published Aug 18, 2009
Tracked Since Feb 18, 2026