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CVE-2009-4141

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Date: January 19, 2010

Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.

Language: C

Severity Score

Related Resources (20)

https://nvd.nist.gov/vuln/detail/CVE-2009-4141
http://twitter.com/taviso/statuses/7744108017
http://support.avaya.com/css/P8/documents/100073666
http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.html
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53281b6d34d44308372d16acb7fb5327609f68b6
http://secunia.com/advisories/38199
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2009-4141
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9201
http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.33-rc4-git1.bz2
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7054
http://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.c
http://secunia.com/advisories/39033
https://bugzilla.redhat.com/show_bug.cgi?id=547906
https://rhn.redhat.com/errata/RHSA-2010-0095.html
https://rhn.redhat.com/errata/RHSA-2010-0046.html
https://access.redhat.com/security/cve/CVE-2009-4141
http://www.securityfocus.com/bid/37806
http://www.redhat.com/support/errata/RHSA-2010-0161.html
https://www.mend.io/vulnerability-database/CVE-2009-4141

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): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

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

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