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CVE-2009-1961

MEDIUMCVSS 4.7/10EPSS 0.59%

Last modified

CVE-2009-1961 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. 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.. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
4.7/10

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

EPSS Probability
0.59%

43.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
LinuxLinux Kernel<= 2.6.19—
LinuxLinux Kernel>= 2.6.27, < 2.6.27.24—
LinuxLinux Kernel>= 2.6.29, < 2.6.29.4—
LinuxLinux Kernel2.6.30Rc1
DebianDebian Linux4.0—
CanonicalUbuntu Linux6.06—
CanonicalUbuntu Linux8.04—
CanonicalUbuntu Linux8.10—
CanonicalUbuntu Linux9.04—
OpensuseOpensuse10.3—
OpensuseOpensuse11.1—
SuseLinux Enterprise11.0—
SuseLinux Enterprise Desktop11—
SuseLinux Enterprise Server11—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-1961?
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.
How severe is CVE-2009-1961?
CVE-2009-1961 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.
How do I fix CVE-2009-1961?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-1961?

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Source: NVD / NIST