|Bugzilla:||538734: CVE-2009-4021 kernel: fuse: prevent fuse_put_request on invalid pointer|
The MITRE CVE dictionary describes this issue as:
The fuse_direct_io function in fs/fuse/file.c in the fuse subsystem in the Linux kernel before 2.6.32-rc7 might allow attackers to cause a denial of service (invalid pointer dereference and OOPS) via vectors possibly related to a memory-consumption attack.
Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/CVE-2009-4021
The Linux kernel packages as shipped with Red Hat Enterprise Linux 3 and 4 do not include support for FUSE, and therefore are not affected by this issue.
It was addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-0046.html
A future kernel update for Red Hat Enterprise MRG will address this flaw.
CVSS v2 metrics
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Red Hat security errata
|MRG Grid for RHEL 5 Server (kernel-rt)||RHSA-2010:0041||January 21, 2010|
|Red Hat Enterprise Linux version 5 (kernel)||RHSA-2010:0046||January 19, 2010|
This page is generated automatically and has not been checked for errors or omissions.
For clarification or corrections please contact the Red Hat Security Response Team.