CVE-2009-2844 Null dereference in n/a
Remote attackers can crash the Linux kernel via crafted wireless beacon frames, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2009-2844?
CVE-2009-2844 is a high-severity vulnerability in Linux kernel, published on 18 Aug 2009. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-399
Which versions are affected by CVE-2009-2844?
It affects 2 products.
Products include Linux Kernel, Linux kernel.
How do I fix CVE-2009-2844?
No fix has been published for CVE-2009-2844 yet. Limit exposure of the affected software until one is available.
Is CVE-2009-2844 being exploited?
There is no known exploitation of CVE-2009-2844 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as GHSA-h6cm-xhvp-x8jm.