Upstream information

CVE-2009-4141 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.2
Vector AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete

Note from the SUSE Security Team

This problem was introduced at some time in 2008 where locking was changed to be more finegrained. It affects openSUSE 11.2, and we are still evaluating if it affects SLE 11. Older products are not affected by this problem.,This problem was introduced at some time in 2008 where locking was changed to be more finegrained. It affects openSUSE 11.2, and we are still evaluating if it affects SUSE Linux Enterprise 11. Older products are not affected by this problem.

SUSE Bugzilla entries: 565083 [RESOLVED / FIXED], 572937 [RESOLVED / INVALID]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise 11 Moblin 2.0
  • kernel-default-debuginfo >= 2.6.30.10-0.2.1
  • kernel-default-debugsource >= 2.6.30.10-0.2.1
SAT Patch Nr: 2344
SUSE Linux Enterprise 11 Moblin 2.0
  • kernel-default >= 2.6.30.10-0.2.1
  • kernel-default-base >= 2.6.30.10-0.2.1
  • kernel-default-extra >= 2.6.30.10-0.2.1
SAT Patch Nr: 2344
openSUSE 11.2
  • kernel-debug-debuginfo >= 2.6.31.12-0.1.1
  • kernel-debug-debugsource >= 2.6.31.12-0.1.1
  • kernel-debug-devel-debuginfo >= 2.6.31.12-0.1.1
  • kernel-default-debuginfo >= 2.6.31.12-0.1.1
  • kernel-default-debugsource >= 2.6.31.12-0.1.1
  • kernel-default-devel-debuginfo >= 2.6.31.12-0.1.1
  • kernel-desktop-base-debuginfo >= 2.6.31.12-0.1.1
  • kernel-desktop-debuginfo >= 2.6.31.12-0.1.1
  • kernel-desktop-debugsource >= 2.6.31.12-0.1.1
  • kernel-pae-debuginfo >= 2.6.31.12-0.1.1
  • kernel-pae-debugsource >= 2.6.31.12-0.1.1
  • kernel-pae-devel-debuginfo >= 2.6.31.12-0.1.1
  • kernel-trace-base-debuginfo >= 2.6.31.12-0.1.1
  • kernel-trace-debuginfo >= 2.6.31.12-0.1.1
  • kernel-trace-debugsource >= 2.6.31.12-0.1.1
  • kernel-vanilla-base-debuginfo >= 2.6.31.12-0.1.1
  • kernel-vanilla-debuginfo >= 2.6.31.12-0.1.1
  • kernel-vanilla-debugsource >= 2.6.31.12-0.1.1
  • kernel-xen-debuginfo >= 2.6.31.12-0.1.1
  • kernel-xen-debugsource >= 2.6.31.12-0.1.1
  • kernel-xen-devel-debuginfo >= 2.6.31.12-0.1.1
openSUSE 11.2
  • kernel-debug >= 2.6.31.12-0.1.1
  • kernel-debug-base >= 2.6.31.12-0.1.1
  • kernel-debug-devel >= 2.6.31.12-0.1.1
  • kernel-default >= 2.6.31.12-0.1.1
  • kernel-default-base >= 2.6.31.12-0.1.1
  • kernel-default-devel >= 2.6.31.12-0.1.1
  • kernel-desktop >= 2.6.31.12-0.1.1
  • kernel-desktop-base >= 2.6.31.12-0.1.1
  • kernel-desktop-devel >= 2.6.31.12-0.1.1
  • kernel-pae >= 2.6.31.12-0.1.1
  • kernel-pae-base >= 2.6.31.12-0.1.1
  • kernel-pae-devel >= 2.6.31.12-0.1.1
  • kernel-source >= 2.6.31.12-0.1.1
  • kernel-source-vanilla >= 2.6.31.12-0.1.1
  • kernel-syms >= 2.6.31.12-0.1.1
  • kernel-trace >= 2.6.31.12-0.1.1
  • kernel-trace-base >= 2.6.31.12-0.1.1
  • kernel-trace-devel >= 2.6.31.12-0.1.1
  • kernel-vanilla >= 2.6.31.12-0.1.1
  • kernel-vanilla-base >= 2.6.31.12-0.1.1
  • kernel-vanilla-devel >= 2.6.31.12-0.1.1
  • kernel-xen >= 2.6.31.12-0.1.1
  • kernel-xen-base >= 2.6.31.12-0.1.1
  • kernel-xen-devel >= 2.6.31.12-0.1.1
  • preload-kmp-default >= 1.1_2.6.31.12_0.1-6.9.12
  • preload-kmp-desktop >= 1.1_2.6.31.12_0.1-6.9.12


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 10 SP3 kernel-source Released
SUSE Linux Enterprise Desktop 11 GA kernel-source Released
SUSE Linux Enterprise Server 10 SP3 kernel-source Released
SUSE Linux Enterprise Server 11 GA kernel-source Released