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=====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2009:1222-02
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1222.html
Issue date: 2009-08-24
CVE Names: CVE-2009-2692 CVE-2009-2698
=====================================================================

1. Summary:

Updated kernel packages that fix two security issues and a bug are now
available for Red Hat Enterprise Linux 5.

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 Desktop (v. 5 client) - i386, noarch, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

These updated packages fix the following security issues:

* a flaw was found in the SOCKOPS_WRAP macro in the Linux kernel. This
macro did not initialize the sendpage operation in the proto_ops structure
correctly. A local, unprivileged user could use this flaw to cause a local
denial of service or escalate their privileges. (CVE-2009-2692, Important)

* a flaw was found in the udp_sendmsg() implementation in the Linux kernel
when using the MSG_MORE flag on UDP sockets. A local, unprivileged user
could use this flaw to cause a local denial of service or escalate their
privileges. (CVE-2009-2698, Important)

Red Hat would like to thank Tavis Ormandy and Julien Tinnes of the Google
Security Team for responsibly reporting these flaws.

These updated packages also fix the following bug:

* in the dlm code, a socket was allocated in tcp_connect_to_sock(), but was
not freed in the error exit path. This bug led to a memory leak and an
unresponsive system. A reported case of this bug occurred after running
"cman_tool kill -n [nodename]". (BZ#515432)

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/):

515432 - dlm_send socket leak [rhel-5.3.z]
516949 - CVE-2009-2692 kernel: uninit op in SOCKOPS_WRAP() leads to privesc
518034 - CVE-2009-2698 kernel: udp socket NULL ptr dereference

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/kernel-2.6.18-128.7.1.el5.src.rpm

i386:
kernel-2.6.18-128.7.1.el5.i686.rpm
kernel-PAE-2.6.18-128.7.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-128.7.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-128.7.1.el5.i686.rpm
kernel-debug-2.6.18-128.7.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-128.7.1.el5.i686.rpm
kernel-debug-devel-2.6.18-128.7.1.el5.i686.rpm
kernel-debuginfo-2.6.18-128.7.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-128.7.1.el5.i686.rpm
kernel-devel-2.6.18-128.7.1.el5.i686.rpm
kernel-headers-2.6.18-128.7.1.el5.i386.rpm
kernel-xen-2.6.18-128.7.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-128.7.1.el5.i686.rpm
kernel-xen-devel-2.6.18-128.7.1.el5.i686.rpm

noarch:
kernel-doc-2.6.18-128.7.1.el5.noarch.rpm

x86_64:
kernel-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debug-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-128.7.1.el5.x86_64.rpm
kernel-devel-2.6.18-128.7.1.el5.x86_64.rpm
kernel-headers-2.6.18-128.7.1.el5.x86_64.rpm
kernel-xen-2.6.18-128.7.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-128.7.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-128.7.1.el5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/kernel-2.6.18-128.7.1.el5.src.rpm

i386:
kernel-2.6.18-128.7.1.el5.i686.rpm
kernel-PAE-2.6.18-128.7.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-128.7.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-128.7.1.el5.i686.rpm
kernel-debug-2.6.18-128.7.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-128.7.1.el5.i686.rpm
kernel-debug-devel-2.6.18-128.7.1.el5.i686.rpm
kernel-debuginfo-2.6.18-128.7.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-128.7.1.el5.i686.rpm
kernel-devel-2.6.18-128.7.1.el5.i686.rpm
kernel-headers-2.6.18-128.7.1.el5.i386.rpm
kernel-xen-2.6.18-128.7.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-128.7.1.el5.i686.rpm
kernel-xen-devel-2.6.18-128.7.1.el5.i686.rpm

ia64:
kernel-2.6.18-128.7.1.el5.ia64.rpm
kernel-debug-2.6.18-128.7.1.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-128.7.1.el5.ia64.rpm
kernel-debug-devel-2.6.18-128.7.1.el5.ia64.rpm
kernel-debuginfo-2.6.18-128.7.1.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-128.7.1.el5.ia64.rpm
kernel-devel-2.6.18-128.7.1.el5.ia64.rpm
kernel-headers-2.6.18-128.7.1.el5.ia64.rpm
kernel-xen-2.6.18-128.7.1.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-128.7.1.el5.ia64.rpm
kernel-xen-devel-2.6.18-128.7.1.el5.ia64.rpm

noarch:
kernel-doc-2.6.18-128.7.1.el5.noarch.rpm

ppc:
kernel-2.6.18-128.7.1.el5.ppc64.rpm
kernel-debug-2.6.18-128.7.1.el5.ppc64.rpm
kernel-debug-debuginfo-2.6.18-128.7.1.el5.ppc64.rpm
kernel-debug-devel-2.6.18-128.7.1.el5.ppc64.rpm
kernel-debuginfo-2.6.18-128.7.1.el5.ppc64.rpm
kernel-debuginfo-common-2.6.18-128.7.1.el5.ppc64.rpm
kernel-devel-2.6.18-128.7.1.el5.ppc64.rpm
kernel-headers-2.6.18-128.7.1.el5.ppc.rpm
kernel-headers-2.6.18-128.7.1.el5.ppc64.rpm
kernel-kdump-2.6.18-128.7.1.el5.ppc64.rpm
kernel-kdump-debuginfo-2.6.18-128.7.1.el5.ppc64.rpm
kernel-kdump-devel-2.6.18-128.7.1.el5.ppc64.rpm

s390x:
kernel-2.6.18-128.7.1.el5.s390x.rpm
kernel-debug-2.6.18-128.7.1.el5.s390x.rpm
kernel-debug-debuginfo-2.6.18-128.7.1.el5.s390x.rpm
kernel-debug-devel-2.6.18-128.7.1.el5.s390x.rpm
kernel-debuginfo-2.6.18-128.7.1.el5.s390x.rpm
kernel-debuginfo-common-2.6.18-128.7.1.el5.s390x.rpm
kernel-devel-2.6.18-128.7.1.el5.s390x.rpm
kernel-headers-2.6.18-128.7.1.el5.s390x.rpm
kernel-kdump-2.6.18-128.7.1.el5.s390x.rpm
kernel-kdump-debuginfo-2.6.18-128.7.1.el5.s390x.rpm
kernel-kdump-devel-2.6.18-128.7.1.el5.s390x.rpm

x86_64:
kernel-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debug-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-128.7.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-128.7.1.el5.x86_64.rpm
kernel-devel-2.6.18-128.7.1.el5.x86_64.rpm
kernel-headers-2.6.18-128.7.1.el5.x86_64.rpm
kernel-xen-2.6.18-128.7.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-128.7.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-128.7.1.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-2009-2692
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2698
http://www.redhat.com/security/updates/classification/#important

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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