National Cyber-Alert System
Vulnerability Summary for CVE-2009-4410
Original release date:12/24/2009
Last revised:01/05/2010
Source:
US-CERT/NIST
Overview
The fuse_ioctl_copy_user function in the ioctl handler in fs/fuse/file.c in the Linux kernel 2.6.29-rc1 through 2.6.30.y uses the wrong variable in an argument to the kunmap function, which allows local users to cause a denial of service (panic) via unknown vectors.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.9
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
Official Statement from Red Hat (12/31/2009)
Not vulnerable. This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 and Red Hat Enterprise MRG. Shipped kernels do not include upstream commit 59efec7b that introduced the problem.
References to Advisories, Solutions, and Tools
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External Source: FEDORA
Name: FEDORA-2009-13694
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=549400
External Source: BID
Name: 37453
External Source: MLIST
Name: [oss-security] 20091223 CVE request - kernel: fuse_ioctl_copy_user() dos
External Source: SECUNIA
Name: 37928
External Source: OSVDB
Name: 61335
