CVE-2009-1961
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.6% in the next 30 days (EPSS).
- Severity: 4.7 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.6% · EPSS, next 30 days
- Weakness
- CWE-667
- Record status
- Modified
Affected
- Linux Kernel ≤ 2.6.19
- Linux Kernel < 2.6.27.24
- Linux Kernel < 2.6.29.4
- Linux Kernel 2.6.30
- Debian Linux 4.0
- Canonical Ubuntu Linux 6.06
- Canonical Ubuntu Linux 8.04
- Canonical Ubuntu Linux 8.10
Attack profile CVSS 3.1 · 4.7
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2009-1961.md and follow it. Check whether this project is affected by CVE-2009-1961. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.debian.org/security/2009/dsa-1844
- http://www.openwall.com/lists/oss-security/2009/05/29/2
- http://www.openwall.com/lists/oss-security/2009/05/30/1
- http://www.debian.org/security/2009/dsa-1844
- http://www.openwall.com/lists/oss-security/2009/05/29/2
- http://www.openwall.com/lists/oss-security/2009/05/30/1
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=7bfac9ecf0585962fe13584f5cf526d8c8e76f17
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.html
- http://secunia.com/advisories/35390
- http://secunia.com/advisories/35394
- http://secunia.com/advisories/35656
- http://secunia.com/advisories/35847
- http://secunia.com/advisories/36051
- http://securitytracker.com/id?1022307
- http://www.debian.org/security/2009/dsa-1844
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:135
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:148
- http://www.openwall.com/lists/oss-security/2009/05/29/2
- http://www.openwall.com/lists/oss-security/2009/05/30/1
- http://www.openwall.com/lists/oss-security/2009/06/02/2
- http://www.openwall.com/lists/oss-security/2009/06/03/1
- http://www.redhat.com/support/errata/RHSA-2009-1157.html
- http://www.securityfocus.com/bid/35143
- http://www.ubuntu.com/usn/usn-793-1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=7bfac9ecf0585962fe13584f5cf526d8c8e76f17
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.html
- http://secunia.com/advisories/35390