Important: kernel security update

Updated kernel packages that fix a number of security issues are now
available for Red Hat Enterprise Linux 2.1 (64-bit architectures).

This security advisory has been rated as having important security impact by
the Red Hat Security Response Team.

The Linux kernel handles the basic functions of the operating system.

These new kernel packages contain fixes for the security issues described
below:

* a flaw in IPV6 flow label handling that allowed a local user to
cause a denial of service (crash). (CVE-2007-1592, Important)

* a flaw in the ISDN CAPI subsystem that allowed a remote user to cause a
denial of service or potential privilege escalation. (CVE-2007-1217, Moderate)

* a flaw in the Bluetooth subsystem that allowed a local user to trigger an
information leak. (CVE-2007-1353, Low)

* a flaw in the supported filesystems that allowed a local privileged user
to cause a denial of service. (CVE-2006-6054, Low)

Red Hat would like to thank Ilja van Sprundel for reporting an issue fixed
in this erratum.

All Red Hat Enterprise Linux 2.1 users are advised to upgrade their kernels
to these updated packages, which contain backported fixes to correct these
issues.

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/FAQ_58_10188

217024 - CVE-2006-6054 ext2_check_page denial of service
231071 - CVE-2007-1217 Overflow in CAPI subsystem
233484 - CVE-2007-1592 IPv6 oops triggerable by any user
234296 - CVE-2007-1353 Bluetooth setsockopt() information leaks

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6054
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1217
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1353
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1592
http://www.redhat.com/security/updates/classification/#important