SB2009081401 - NULL pointer dereference in Linux kernel
Published: August 14, 2009 Updated: June 4, 2024
Security Bulletin ID
SB2009081401
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2009-2767)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to NULL pointer dereference within the no_timer_create() and init_posix_timers() functions in kernel/posix-timers.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=70d715fd0597f18528f389b5ac59102263067744
- http://lkml.org/lkml/2009/8/4/28
- http://lkml.org/lkml/2009/8/4/40
- http://secunia.com/advisories/36200
- 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/2009/2197
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52317