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CVE-2009-4021

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Date: November 25, 2009

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.

Language: C

Severity Score

Related Resources (24)

http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
https://nvd.nist.gov/vuln/detail/CVE-2009-4021
http://www.redhat.com/support/errata/RHSA-2010-0041.html
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
http://support.avaya.com/css/P8/documents/100073666
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2009-4021
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f60311d5f7670d9539b424e4ed8b5c0872fc9e83
http://secunia.com/advisories/38017
https://exchange.xforce.ibmcloud.com/vulnerabilities/54358
http://www.securityfocus.com/bid/37069
http://www.openwall.com/lists/oss-security/2009/11/19/1
https://rhn.redhat.com/errata/RHSA-2010-0095.html
https://rhn.redhat.com/errata/RHSA-2010-0046.html
http://www.openwall.com/lists/oss-security/2009/11/24/5
https://access.redhat.com/security/cve/CVE-2009-4021
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6955
http://secunia.com/advisories/37909
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc7
http://www.debian.org/security/2010/dsa-2005
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10516
https://bugzilla.redhat.com/show_bug.cgi?id=538734
https://www.mend.io/vulnerability-database/CVE-2009-4021

Severity Score

Weakness Type (CWE)

Resource Management Errors

CWE-399

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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