CVE-2009-4021 Detail

Current Description

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.


View Analysis Description

Severity



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Vendor Statements (disclaimer)

Official Statement from Red Hat (01/21/2010)

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.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f60311d5f7670d9539b424e4ed8b5c0872fc9e83
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
http://support.avaya.com/css/P8/documents/100073666
http://www.debian.org/security/2010/dsa-2005
http://www.openwall.com/lists/oss-security/2009/11/19/1
http://www.openwall.com/lists/oss-security/2009/11/24/5
http://www.redhat.com/support/errata/RHSA-2010-0041.html
http://www.securityfocus.com/bid/37069
https://bugzilla.redhat.com/show_bug.cgi?id=538734
https://exchange.xforce.ibmcloud.com/vulnerabilities/54358
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10516
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6955
https://rhn.redhat.com/errata/RHSA-2010-0046.html
https://rhn.redhat.com/errata/RHSA-2010-0095.html

Weakness Enumeration

CWE-ID CWE Name Source
CWE-399 Resource Management Errors cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2009-4021
NVD Published Date:
11/25/2009
NVD Last Modified:
09/18/2017
Source:
Red Hat, Inc.