CVE-2009-4141

high

Description

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.

References

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

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

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

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

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

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

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

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

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

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

http://secunia.com/advisories/39033

http://secunia.com/advisories/38199

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

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

Details

Source: Mitre, NVD

Published: 2010-01-19

Updated: 2023-02-13

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High