Vulnerability Details : CVE-2009-2844

Potential exploit
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 2009-08-18 21:00:00
Updated 2025-04-09 00:30:58
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2009-2844

Threat overview for CVE-2009-2844

Top countries where our scanners detected CVE-2009-2844
Top open port discovered on systems with this issue 80
IPs affected by CVE-2009-2844 112,906
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2009-2844!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2009-2844

EPSS FAQ
1.50%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-2844

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
 HIGH AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
 NIST

CWE ids for CVE-2009-2844

  • Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2009-2844

  • Red Hat 2009-08-19
    Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 or Red Hat Enterprise MRG. Please note this issue only affected Linux kernel versions after v2.6.30-rc1 and was fixed in v2.6.31-rc6.

References for CVE-2009-2844

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