National Cyber-Alert System
Vulnerability Summary for CVE-2009-1961
Original release date:06/08/2009
Last revised:08/12/2009
Source:
US-CERT/NIST
Overview
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.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
- Official Statement from Red Hat (07/15/2009)
-
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, and 5. It was addressed in Red Hat Enterprise MRG via: https://rhn.redhat.com/errata/RHSA-2009-1157.html
References to Advisories, Solutions, and Tools
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External Source: MLIST
Name: [oss-security] 20090530 Re: CVE request: kernel: splice local denial of service
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20090529 CVE request: kernel: splice local denial of service
Type: Patch Information
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7bfac9ecf0585962fe13584f5cf526d8c8e76f17
Type: Patch Information
External Source: BID
Name: 35143
External Source: REDHAT
Name: RHSA-2009:1157
External Source: MLIST
Name: [oss-security] 20090603 Re: CVE request: kernel: splice local denial of service
External Source: MLIST
Name: [oss-security] 20090602 Re: CVE request: kernel: splice local denial of service
External Source: MANDRIVA
Name: MDVSA-2009:148
External Source: MANDRIVA
Name: MDVSA-2009:135
External Source: DEBIAN
Name: DSA-1844
External Source: SECTRACK
Name: 1022307
External Source: SECUNIA
Name: 36051
External Source: SECUNIA
Name: 35847
External Source: SECUNIA
Name: 35394
External Source: SECUNIA
Name: 35390
External Source: SUSE
Name: SUSE-SA:2009:038
External Source: SUSE
Name: SUSE-SA:2009:031
External Source: SUSE
Name: SUSE-SA:2009:030