Strix
26.1K

CVE-2009-2844

UnknownEPSS 3.36%

Last modified

CVE-2009-2844 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.36% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
3.36%

87.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
LinuxKernel2.6.24.7—
LinuxKernel2.6.25.15—
LinuxLinux Kernel<= 2.6.16.31-Rc5
LinuxLinux Kernel2.6—
LinuxLinux Kernel2.6.0—
LinuxLinux Kernel2.6.1—
LinuxLinux Kernel2.6.10—
LinuxLinux Kernel2.6.11—
LinuxLinux Kernel2.6.11.1—
LinuxLinux Kernel2.6.11.2—
LinuxLinux Kernel2.6.11.3—
LinuxLinux Kernel2.6.11.4—
LinuxLinux Kernel2.6.11.5—
LinuxLinux Kernel2.6.11.6—
LinuxLinux Kernel2.6.11.7—
LinuxLinux Kernel2.6.11.8—
LinuxLinux Kernel2.6.11.9—
LinuxLinux Kernel2.6.11.10—
LinuxLinux Kernel2.6.11.11—
LinuxLinux Kernel2.6.11.12—
LinuxLinux Kernel2.6.12—
LinuxLinux Kernel2.6.12.1—
LinuxLinux Kernel2.6.12.2—
LinuxLinux Kernel2.6.12.3—
LinuxLinux Kernel2.6.12.4—
LinuxLinux Kernel2.6.12.5—
LinuxLinux Kernel2.6.12.6—
LinuxLinux Kernel2.6.13—
LinuxLinux Kernel2.6.13.1—
LinuxLinux Kernel2.6.13.2—
LinuxLinux Kernel2.6.13.3—
LinuxLinux Kernel2.6.13.4—
LinuxLinux Kernel2.6.13.5—
LinuxLinux Kernel2.6.14—
LinuxLinux Kernel2.6.14.1—
LinuxLinux Kernel2.6.14.2—
LinuxLinux Kernel2.6.14.3—
LinuxLinux Kernel2.6.14.4—
LinuxLinux Kernel2.6.14.5—
LinuxLinux Kernel2.6.14.6—
LinuxLinux Kernel2.6.14.7—
LinuxLinux Kernel2.6.15—
LinuxLinux Kernel2.6.15.1—
LinuxLinux Kernel2.6.15.2—
LinuxLinux Kernel2.6.15.3—
LinuxLinux Kernel2.6.15.4—
LinuxLinux Kernel2.6.15.5—
LinuxLinux Kernel2.6.15.6—
LinuxLinux Kernel2.6.15.7—
LinuxLinux Kernel2.6.16—

Showing 50 of 75 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2009-2844?
Severity scoring for CVE-2009-2844 is pending analysis. The EPSS model estimates a 3.36% probability of exploitation in the next 30 days.
How do I fix CVE-2009-2844?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-2844?

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Source: NVD / NIST