What is CVE-2009-1961?

CVE-2009-1961 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Improper Locking flaw (CWE-667). CVE-2009-1961 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2009-1961?

CVE-2009-1961 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2009-1961?

No patch is currently available for CVE-2009-1961. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2009-1961 actively exploited?

CVE-2009-1961 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/667.html

CVE-2009-1961

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 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.

Package Linux Kernel

Published 2009-06-08

Last modified 2026-04-23

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-667

CVE-2009-1961 is a Improper Locking vulnerability

What is Improper Locking?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2009-1961 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html

Mailing List
Lists
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html

Mailing List
Lists
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.html

Mailing List
Secunia
http://secunia.com/advisories/35390

Broken Link
Secunia
http://secunia.com/advisories/35394

Broken Link
Secunia
http://secunia.com/advisories/35656

Broken Link
Secunia
http://secunia.com/advisories/35847

Broken Link
Secunia
http://secunia.com/advisories/36051

Broken Link
Securitytracker
http://securitytracker.com/id?1022307

Broken Link Third Party Advisory VDB Entry
Mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:135

Broken Link
Mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:148

Broken Link
Openwall
http://www.openwall.com/lists/oss-security/2009/06/02/2

Exploit Mailing List
Openwall
http://www.openwall.com/lists/oss-security/2009/06/03/1

Exploit Mailing List
Red Hat
http://www.redhat.com/support/errata/RHSA-2009-1157.html

Broken Link
Securityfocus
http://www.securityfocus.com/bid/35143

Broken Link Exploit Third Party Advisory VDB Entry
Ubuntu Security
http://www.ubuntu.com/usn/usn-793-1

Third Party Advisory
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=7bfac9ecf0585962fe13584f5cf526d8c8e76f17
Patch
Kernel patch commit
http://www.debian.org/security/2009/dsa-1844
Patch
Kernel patch commit
http://www.openwall.com/lists/oss-security/2009/05/29/2
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2009-1961

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2009-06-08

Modified 2026-04-23

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2009-1961?

CVE-2009-1961 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as an Improper Locking flaw (CWE-667) . CVE-2009-1961 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2009-1961?

CVE-2009-1961 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2009-1961?

No patch is currently available for CVE-2009-1961. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2009-1961 actively exploited?

No — CVE-2009-1961 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. View CWE-667 on MITRE CWE →