Vulnerability in Linux Kernel
CVE-2009-2844
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.8 (High). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.034 (88.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000
Affected products
- Linux Kernel — versions 2.6.24.7, 2.6.25.15
- Linux Kernel — versions 2.6, 2.6.0, 2.6.1
Weakness classification (CWE)
References
- secunia.com/advisories/36278 (third-party-advisory)
- jon.oberheide.org/files/cfg80211-remote-dos.c (Patch)
- git.kernel.org/
- www.openwall.com/lists/oss-security/2009/08/17/2 (mailing-list, Patch)
- www.openwall.com/lists/oss-security/2009/08/17/1 (mailing-list, Patch)
- www.securityfocus.com/bid/36052 (vdb-entry)
- www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5