SB2008021201 - Improper input validation in Linux kernel
Published: February 12, 2008 Updated: June 20, 2024
Security Bulletin ID
SB2008021201
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper input validation (CVE-ID: CVE-2008-0010)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to gain access to sensitive information.
The copy_from_user_mmap_sem function in fs/splice.c in the Linux kernel 2.6.22 through 2.6.24 does not validate a certain userspace pointer before dereference, which allow local users to read from arbitrary kernel memory locations.
Remediation
Install update from vendor's website.
References
- http://isec.pl/vulnerabilities/isec-0026-vmsplice_to_kernel.txt
- http://secunia.com/advisories/28835
- http://secunia.com/advisories/28875
- http://secunia.com/advisories/28896
- http://www.debian.org/security/2008/dsa-1494
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.24.1
- http://www.securityfocus.com/archive/1/487982/100/0/threaded
- http://www.securityfocus.com/bid/27704
- http://www.securityfocus.com/bid/27796
- http://www.vupen.com/english/advisories/2008/0487/references
- https://www.exploit-db.com/exploits/5093
- https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00254.html
- https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00255.html