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CVE-2009-4141

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

8.4

Related Resources (20)

Url: https://nvd.nist.gov/vuln/detail/CVE-2009-4141

Url: http://twitter.com/taviso/statuses/7744108017

Url: http://support.avaya.com/css/P8/documents/100073666

Url: http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.html

Url: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53281b6d34d44308372d16acb7fb5327609f68b6

Url: http://secunia.com/advisories/38199

Url: http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2009-4141

Url: https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9201

Url: http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.33-rc4-git1.bz2

Url: https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7054

Url: http://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.c

Url: http://secunia.com/advisories/39033

Url: https://bugzilla.redhat.com/show_bug.cgi?id=547906

Url: https://rhn.redhat.com/errata/RHSA-2010-0095.html

Url: https://rhn.redhat.com/errata/RHSA-2010-0046.html

Url: https://access.redhat.com/security/cve/CVE-2009-4141

Url: http://www.securityfocus.com/bid/37806

Url: http://www.redhat.com/support/errata/RHSA-2010-0161.html

Url: https://www.mend.io/vulnerability-database/CVE-2009-4141

Severity Score

8.4

Weakness Type (CWE)

Resource Management Errors

CWE-399

CVSS v3.1

Base Score:	8.4
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:	7.2
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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CVE-2009-4141

Date: January 19, 2010

Language: C

Severity Score

Related Resources (20)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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