[RHSA-2009:1587-01] Important: kernel security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Important: kernel security and bug fix update

Advisory ID: RHSA-2009:1587-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1587.html

Issue date: 2009-11-17

CVE Names: CVE-2009-2695 CVE-2009-3547

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1. Summary:

 

Updated kernel packages that fix multiple security issues and various bugs

are now available for Red Hat Enterprise Linux 5.3 Extended Update Support.

 

This update has been rated as having important security impact by the Red

Hat Security Response Team.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux (v. 5.3.z server) - i386, ia64, noarch, ppc, s390x, x86_64

 

3. Description:

 

The kernel packages contain the Linux kernel, the core of any Linux

operating system.

 

This update fixes the following security issues:

 

* a system with SELinux enforced was more permissive in allowing local

users in the unconfined_t domain to map low memory areas even if the

mmap_min_addr restriction was enabled. This could aid in the local

exploitation of NULL pointer dereference bugs. (CVE-2009-2695, Important)

 

* 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)

 

This update also fixes the following bugs:

 

* a caching bug in nfs_readdir() has been resolved. This may have caused

parts of directory listings to become stale, as they came from cached data

when they should not have, possibly causing NFS clients to see duplicate

files or not see all files in a directory. (BZ#526959)

 

* a bug prevented the pciehp driver from detecting PCI Express hot plug

slots on some systems. (BZ#530381)

 

* when a process attempted to read from a page that had first been accessed

by writing to part of it (via write(2)), the NFS client needed to flush the

modified portion of the page out to the server, and then read the entire

page back in. This flush caused performance issues. (BZ#521243)

 

* a deadlock was found in the cciss driver. In rare cases, this caused an

NMI lockup during boot. Messages such as "cciss: controller cciss[x]

failed, stopping." and "cciss[x]: controller not responding." may have been

displayed on the console. (BZ#525728)

 

Users should upgrade to these updated packages, which contain backported

patches to correct these issues. The system must be rebooted for this

update to take effect.

 

4. 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

http://kbase.redhat.com/faq/docs/DOC-11259

 

5. Bugs fixed (http://bugzilla.redhat.com/):

 

517830 - CVE-2009-2695 kernel: SELinux and mmap_min_addr

521243 - Read/Write NFS I/O performance degraded by FLUSH_STABLE page flushing [rhel-5.3.z]

525728 - cciss: spinlock deadlock causes NMI on HP systems [rhel-5.3.z]

526959 - [NetApp 5.5 bug] nfs_readdir() may fail to return all the files in the directory [rhel-5.3.z]

530381 - [5.3] PCIe hotplug slot detection failure [rhel-5.3.z]

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

 

6. Package List:

 

Red Hat Enterprise Linux (v. 5.3.z server):

 

Source:

kernel-2.6.18-128.11.1.el5.src.rpm

 

i386:

kernel-2.6.18-128.11.1.el5.i686.rpm

kernel-PAE-2.6.18-128.11.1.el5.i686.rpm

kernel-PAE-debuginfo-2.6.18-128.11.1.el5.i686.rpm

kernel-PAE-devel-2.6.18-128.11.1.el5.i686.rpm

kernel-debug-2.6.18-128.11.1.el5.i686.rpm

kernel-debug-debuginfo-2.6.18-128.11.1.el5.i686.rpm

kernel-debug-devel-2.6.18-128.11.1.el5.i686.rpm

kernel-debuginfo-2.6.18-128.11.1.el5.i686.rpm

kernel-debuginfo-common-2.6.18-128.11.1.el5.i686.rpm

kernel-devel-2.6.18-128.11.1.el5.i686.rpm

kernel-headers-2.6.18-128.11.1.el5.i386.rpm

kernel-xen-2.6.18-128.11.1.el5.i686.rpm

kernel-xen-debuginfo-2.6.18-128.11.1.el5.i686.rpm

kernel-xen-devel-2.6.18-128.11.1.el5.i686.rpm

 

ia64:

kernel-2.6.18-128.11.1.el5.ia64.rpm

kernel-debug-2.6.18-128.11.1.el5.ia64.rpm

kernel-debug-debuginfo-2.6.18-128.11.1.el5.ia64.rpm

kernel-debug-devel-2.6.18-128.11.1.el5.ia64.rpm

kernel-debuginfo-2.6.18-128.11.1.el5.ia64.rpm

kernel-debuginfo-common-2.6.18-128.11.1.el5.ia64.rpm

kernel-devel-2.6.18-128.11.1.el5.ia64.rpm

kernel-headers-2.6.18-128.11.1.el5.ia64.rpm

kernel-xen-2.6.18-128.11.1.el5.ia64.rpm

kernel-xen-debuginfo-2.6.18-128.11.1.el5.ia64.rpm

kernel-xen-devel-2.6.18-128.11.1.el5.ia64.rpm

 

noarch:

kernel-doc-2.6.18-128.11.1.el5.noarch.rpm

 

ppc:

kernel-2.6.18-128.11.1.el5.ppc64.rpm

kernel-debug-2.6.18-128.11.1.el5.ppc64.rpm

kernel-debug-debuginfo-2.6.18-128.11.1.el5.ppc64.rpm

kernel-debug-devel-2.6.18-128.11.1.el5.ppc64.rpm

kernel-debuginfo-2.6.18-128.11.1.el5.ppc64.rpm

kernel-debuginfo-common-2.6.18-128.11.1.el5.ppc64.rpm

kernel-devel-2.6.18-128.11.1.el5.ppc64.rpm

kernel-headers-2.6.18-128.11.1.el5.ppc.rpm

kernel-headers-2.6.18-128.11.1.el5.ppc64.rpm

kernel-kdump-2.6.18-128.11.1.el5.ppc64.rpm

kernel-kdump-debuginfo-2.6.18-128.11.1.el5.ppc64.rpm

kernel-kdump-devel-2.6.18-128.11.1.el5.ppc64.rpm

 

s390x:

kernel-2.6.18-128.11.1.el5.s390x.rpm

kernel-debug-2.6.18-128.11.1.el5.s390x.rpm

kernel-debug-debuginfo-2.6.18-128.11.1.el5.s390x.rpm

kernel-debug-devel-2.6.18-128.11.1.el5.s390x.rpm

kernel-debuginfo-2.6.18-128.11.1.el5.s390x.rpm

kernel-debuginfo-common-2.6.18-128.11.1.el5.s390x.rpm

kernel-devel-2.6.18-128.11.1.el5.s390x.rpm

kernel-headers-2.6.18-128.11.1.el5.s390x.rpm

kernel-kdump-2.6.18-128.11.1.el5.s390x.rpm

kernel-kdump-debuginfo-2.6.18-128.11.1.el5.s390x.rpm

kernel-kdump-devel-2.6.18-128.11.1.el5.s390x.rpm

 

x86_64:

kernel-2.6.18-128.11.1.el5.x86_64.rpm

kernel-debug-2.6.18-128.11.1.el5.x86_64.rpm

kernel-debug-debuginfo-2.6.18-128.11.1.el5.x86_64.rpm

kernel-debug-devel-2.6.18-128.11.1.el5.x86_64.rpm

kernel-debuginfo-2.6.18-128.11.1.el5.x86_64.rpm

kernel-debuginfo-common-2.6.18-128.11.1.el5.x86_64.rpm

kernel-devel-2.6.18-128.11.1.el5.x86_64.rpm

kernel-headers-2.6.18-128.11.1.el5.x86_64.rpm

kernel-xen-2.6.18-128.11.1.el5.x86_64.rpm

kernel-xen-debuginfo-2.6.18-128.11.1.el5.x86_64.rpm

kernel-xen-devel-2.6.18-128.11.1.el5.x86_64.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://www.redhat.com/security/team/key/#package

 

7. References:

 

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2695

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3547

http://www.redhat.com/security/updates/classification/#important

http://kbase.redhat.com/faq/docs/DOC-18042

http://kbase.redhat.com/faq/docs/DOC-20481

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://www.redhat.com/security/team/contact/

 

Copyright 2009 Red Hat, Inc.

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