SB2009072301 - Integer overflow in Linux kernel
Published: July 23, 2009
Security Bulletin ID
SB2009072301
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) Integer overflow (CVE-ID: CVE-2009-2584)
The vulnerability allows a local user to execute arbitrary code.
Off-by-one error in the options_write function in drivers/misc/sgi-gru/gruprocfs.c in the SGI GRU driver in the Linux kernel 2.6.30.2 and earlier on ia64 and x86 platforms might allow local users to overwrite arbitrary memory locations and gain privileges via a crafted count argument, which triggers a stack-based buffer overflow.
Remediation
Install update from vendor's website.
References
- http://grsecurity.net/~spender/exploit_demo.c
- http://lkml.org/lkml/2009/7/20/348
- http://lkml.org/lkml/2009/7/20/362
- http://secunia.com/advisories/37105
- http://www.securityfocus.com/bid/35753
- http://www.ubuntu.com/usn/USN-852-1
- http://xorl.wordpress.com/2009/07/21/linux-kernel-sgi-gru-driver-off-by-one-overwrite/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51887