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Red Hat 4: RHSA-2009:1541-01 Critical Advisory: Local Denial of Service

red hat
Calendar Grey November 3, 2009
Dist Redhat Esm H88
The recent update by Canonical significantly improves the security framework, tackling crucial vulnerabilities that affect users of Ubuntu Server.
Updated kernel packages that fix security issues are now available for Red Hat Enterprise Linux 4. This update has been rated as having important security impact by the Red Hat Se...

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
This update fixes the following security issues:
* a NULL pointer dereference flaw was found in each of the following functions in the Linux kernel: pipe_read_open(), pipe_write_open(), and pipe_rdwr_open(). When the mutex lock is not held, the i_pipe pointer could be released by other processes before it is used to update the pipe's reader and writer counters. This could lead to a local denial of service or privilege escalation. (CVE-2009-3547, Important)
Users should upgrade to these updated packages, which contain a backported patch to correct these issues. The system must be rebooted for this update to take effect.

Topics%20covered

Topics Covered

security advisory security fix Red Hat Enterprise Linux local DoS kernel issue important update

References

https://www.cve.org/CVERecord?id=CVE-2009-3547 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: kernel-2.6.9-89.0.16.EL.i686.rpm kernel-debuginfo-2.6.9-89.0.16.EL.i686.rpm kernel-devel-2.6.9-89.0.16.EL.i686.rpm kernel-hugemem-2.6.9-89.0.16.EL.i686.rpm kernel-hugemem-devel-2.6.9-89.0.16.EL.i686.rpm kernel-smp-2.6.9-89.0.16.EL.i686.rpm kernel-smp-devel-2.6.9-89.0.16.EL.i686.rpm kernel-xenU-2.6.9-89.0.16.EL.i686.rpm kernel-xenU-devel-2.6.9-89.0.16.EL.i686.rpm
ia64: kernel-2.6.9-89.0.16.EL.ia64.rpm kernel-debuginfo-2.6.9-89.0.16.EL.ia64.rpm kernel-devel-2.6.9-89.0.16.EL.ia64.rpm kernel-largesmp-2.6.9-89.0.16.EL.ia64.rpm kernel-largesmp-devel-2.6.9-89.0.16.EL.ia64.rpm
noarch: kernel-doc-2.6.9-89.0.16.EL.noarch.rpm
ppc: kernel-2.6.9-89.0.16.EL.ppc64.rpm kernel-2.6.9-89.0.16.EL.ppc64iseries.rpm kernel-debuginfo-2.6.9-89.0.16.EL.ppc64.rpm kernel-debuginfo-2.6.9-89.0.16.EL.ppc64iseries.rpm kernel-devel-2.6.9-89.0.16.EL.ppc64.rpm kernel-devel-2.6.9-89.0.16.EL.ppc64iseries.rpm kernel-largesmp-2.6.9-89.0.16.EL.ppc64.rpm kernel-largesmp-devel-2.6.9-89.0.16.EL.ppc64.rpm
s390: kernel-2.6.9-89.0.16.EL.s390.rpm kernel-debuginfo-2.6.9-89.0.16.EL.s390.rpm kernel-devel-2.6.9-89.0.16.EL.s390.rpm
s390x: kernel-2.6.9-89.0.16.EL.s390x.rpm kernel-debuginfo-2.6.9-89.0.16.EL.s390x.rpm kernel-devel-2.6.9-89.0.16.EL.s390x.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2009:1541-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:1541.html
Issue date: 2009-11-03

Topic

Updated kernel packages that fix security issues are now available for RedHat Enterprise Linux 4.This update has been rated as having important security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory security fix Red Hat Enterprise Linux local DoS kernel issue important update

Relevant Releases Architectures

Red Hat Enterprise Linux AS version 4 - i386, ia64, noarch, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, noarch, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, noarch, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, noarch, x86_64

Bugs Fixed

530490 - CVE-2009-3547 kernel: fs: pipe.c null pointer dereference

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