Vulnerability Description
The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before 2.6.30-rc3, 2.6.27 before 2.6.27.24, 2.6.29 before 2.6.29.4, and possibly other versions down to 2.6.19 allows local users to cause a denial of service (prevention of file creation and removal) via a series of splice system calls that trigger a deadlock between the generic_file_splice_write, splice_from_pipe, and ocfs2_file_splice_write functions.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 2.6.19 |
| Debian | Debian Linux | 4.0 |
| Canonical | Ubuntu Linux | 6.06 |
| Opensuse | Opensuse | 10.3 |
| Suse | Linux Enterprise | 11.0 |
| Suse | Linux Enterprise Desktop | 11 |
| Suse | Linux Enterprise Server | 11 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.htmlMailing List
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.htmlMailing List
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.htmlMailing List
- http://secunia.com/advisories/35390Broken Link
- http://secunia.com/advisories/35394Broken Link
- http://secunia.com/advisories/35656Broken Link
- http://secunia.com/advisories/35847Broken Link
- http://secunia.com/advisories/36051Broken Link
- http://securitytracker.com/id?1022307Broken LinkThird Party AdvisoryVDB Entry
- http://www.debian.org/security/2009/dsa-1844Mailing ListPatch
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:135Broken Link
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:148Broken Link
- http://www.openwall.com/lists/oss-security/2009/05/29/2Mailing ListPatch
- http://www.openwall.com/lists/oss-security/2009/05/30/1ExploitMailing ListPatch
FAQ
What is CVE-2009-1961?
CVE-2009-1961 is a vulnerability with a CVSS score of 4.7 (MEDIUM). The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before 2.6.30-rc3, 2.6.27 before 2.6.27.24, 2.6.29 before 2.6.29.4, and possibly other versions down to 2.6.19 allows local ...
How severe is CVE-2009-1961?
CVE-2009-1961 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-1961?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Canonical Ubuntu Linux, Opensuse Opensuse, Suse Linux Enterprise.