SB2008052901 - Security restrictions bypass in Linux kernel
Published: May 29, 2008
Security Bulletin ID
SB2008052901
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2008-2137)
The vulnerability allows a local user to read and manipulate data.
The (1) sparc_mmap_check function in arch/sparc/kernel/sys_sparc.c and the (2) sparc64_mmap_check function in arch/sparc64/kernel/sys_sparc.c, in the Linux kernel 2.4 before 2.4.36.5 and 2.6 before 2.6.25.3, omit some virtual-address range (aka span) checks when the mmap MAP_FIXED bit is not set, which allows local users to cause a denial of service (panic) via unspecified mmap calls.
Remediation
Install update from vendor's website.
References
- http://kerneltrap.org/mailarchive/git-commits-head/2008/5/8/1760604
- http://secunia.com/advisories/30368
- http://secunia.com/advisories/30499
- http://secunia.com/advisories/31107
- http://www.debian.org/security/2008/dsa-1588
- http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.36.5
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.3
- http://www.securityfocus.com/bid/29397
- http://www.securitytracker.com/id?1020119
- http://www.ubuntu.com/usn/usn-625-1
- http://www.vupen.com/english/advisories/2008/1716/references
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42681