CVE-2009-2767 Null dereference in n/a
Local attackers can trigger a NULL pointer dereference in the Linux kernel via specific timer calls, causing a system crash or potentially gaining elevated privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2009-2767?
CVE-2009-2767 is a high-severity vulnerability in Linux kernel, published on 14 Aug 2009. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The init_posix_timers function in kernel/posix-timers.c in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (OOPS) or possibly gain privileges via a CLOCK_MONOTONIC_RAW clock_nanosleep call that triggers a NULL pointer dereference.
Weakness: CWE-119
Which versions are affected by CVE-2009-2767?
It affects 2 products.
Products include Linux Kernel, Linux kernel.
How do I fix CVE-2009-2767?
No fix has been published for CVE-2009-2767 yet. Limit exposure of the affected software until one is available.
Is CVE-2009-2767 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2767 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Linux kernel
Sources
Also known as GHSA-j7ff-hmc8-4xc8.