SB2009011501 - Improper input validation in Linux kernel
Published: January 15, 2009
Security Bulletin ID
SB2009011501
CSH 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 vulnerability.
1) Improper input validation (CVE-ID: CVE-2009-0029)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to execute arbitrary code.
The ABI in the Linux kernel 2.6.28 and earlier on s390, powerpc, sparc64, and mips 64-bit platforms requires that a 32-bit argument in a 64-bit register was properly sign extended when sent from a user-mode application, but cannot verify this, which allows local users to cause a denial of service (crash) or possibly gain privileges via a crafted system call.
Remediation
Install update from vendor's website.
References
- http://www.securityfocus.com/bid/33275
- http://secunia.com/advisories/33477
- https://bugzilla.redhat.com/show_bug.cgi?id=479969
- http://marc.info/?l=linux-kernel&m=123155111608910&w=2
- http://secunia.com/advisories/33674
- https://www.redhat.com/archives/fedora-package-announce/2009-January/msg01045.html
- http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00003.html
- http://www.debian.org/security/2009/dsa-1749
- http://secunia.com/advisories/34394
- http://secunia.com/advisories/34981
- http://www.debian.org/security/2009/dsa-1787
- http://secunia.com/advisories/35011
- http://www.debian.org/security/2009/dsa-1794
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:135