Improper input validation in Linux kernel - CVE-2008-0009
Published: February 12, 2008 / Updated: June 20, 2024
Vulnerability identifier: #VU92861
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2008-0009
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a local user to gain access to sensitive information.
The vmsplice_to_user 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 might allow local users to access arbitrary kernel memory locations.
Affected software
Linux kernel
How to mitigate CVE-2008-0009
Install update from vendor's repository.
Links to Public Exploits and PoC-codes
External References
- http://isec.pl/vulnerabilities/isec-0026-vmsplice_to_kernel.txt
- http://secunia.com/advisories/28835
- http://secunia.com/advisories/28896
- 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/27799
- http://www.vupen.com/english/advisories/2008/0487/references
- https://bugzilla.redhat.com/show_bug.cgi?id=431206
- https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00254.html
- https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00255.html