CVE-2009-2767
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…
Does this matter?
A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 0.7%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
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.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.74% probability · 54th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 6 August 2009
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- linux/kernel · linux/linux kernel
- Source
- cve@mitre.org
EPSS 0.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70d715fd0597f18528f389b5ac59102263067744
- http://lkml.org/lkml/2009/8/4/28Patch
- http://lkml.org/lkml/2009/8/4/40Patch
- http://secunia.com/advisories/36200Vendor Advisory
- http://secunia.com/advisories/37105
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6
- http://www.openwall.com/lists/oss-security/2009/08/06/2
- http://www.ubuntu.com/usn/USN-852-1
- http://www.vupen.com/english/advisories/2009/2197Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52317
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70d715fd0597f18528f389b5ac59102263067744
- http://lkml.org/lkml/2009/8/4/28Patch
- http://lkml.org/lkml/2009/8/4/40Patch
- http://secunia.com/advisories/36200Vendor Advisory
- http://secunia.com/advisories/37105
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6
- http://www.openwall.com/lists/oss-security/2009/08/06/2
- http://www.ubuntu.com/usn/USN-852-1
- http://www.vupen.com/english/advisories/2009/2197Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52317
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.