Issued:

2007-03-14

Updated:

2007-03-14

RHSA-2007:0099 - Important: kernel security and bug fix update

Synopsis

Important: kernel security and bug fix update

Type/Severity

Security Advisory Important

Topic

Updated kernel packages that fix security issues and bugs in the Red Hat Enterprise Linux 5 kernel are now available.

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

Description

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

These new kernel packages contain fixes for the following security issues:

• a flaw in the key serial number collision avoidance algorithm of the keyctl subsystem that allowed a local user to cause a denial of service (CVE-2007-0006, Important)

• a flaw in the Omnikey CardMan 4040 driver that allowed a local user to execute arbitrary code with kernel privileges. In order to exploit this issue, the Omnikey CardMan 4040 PCMCIA card must be present and the local user must have access rights to the character device created by the driver. (CVE-2007-0005, Moderate)

• a flaw in the core-dump handling that allowed a local user to create core dumps from unreadable binaries via PT_INTERP. (CVE-2007-0958, Low)

In addition to the security issues described above, a fix for a kernel panic in the powernow-k8 module, and a fix for a kernel panic when booting the Xen domain-0 on system with large memory installations have been included.

Red Hat would like to thank Daniel Roethlisberger for reporting an issue fixed in this erratum.

Red Hat Enterprise Linux 5 users are advised to upgrade their kernels to the packages associated with their machine architecture and configurations as listed in this erratum.

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 This content is not included.http://kbase.redhat.com/faq/FAQ_58_10188

Affected Products

Updated Packages

• kernel-headers-2.6.18-8.1.1.el5.x86_64.rpm
• kernel-PAE-devel-2.6.18-8.1.1.el5.i686.rpm
• kernel-xen-devel-2.6.18-8.1.1.el5.x86_64.rpm
• kernel-PAE-2.6.18-8.1.1.el5.i686.rpm
• kernel-xen-2.6.18-8.1.1.el5.x86_64.rpm
• kernel-headers-2.6.18-8.1.1.el5.i386.rpm
• kernel-xen-2.6.18-8.1.1.el5.i686.rpm
• kernel-xen-devel-2.6.18-8.1.1.el5.i686.rpm
• kernel-2.6.18-8.1.1.el5.x86_64.rpm
• kernel-2.6.18-8.1.1.el5.ia64.rpm
• kernel-devel-2.6.18-8.1.1.el5.ia64.rpm
• kernel-devel-2.6.18-8.1.1.el5.s390x.rpm
• kernel-doc-2.6.18-8.1.1.el5.noarch.rpm
• kernel-headers-2.6.18-8.1.1.el5.ppc64.rpm
• kernel-headers-2.6.18-8.1.1.el5.ppc.rpm
• kernel-2.6.18-8.1.1.el5.src.rpm
• kernel-kdump-2.6.18-8.1.1.el5.ppc64.rpm
• kernel-devel-2.6.18-8.1.1.el5.x86_64.rpm
• kernel-headers-2.6.18-8.1.1.el5.ia64.rpm
• kernel-2.6.18-8.1.1.el5.i686.rpm
• kernel-kdump-devel-2.6.18-8.1.1.el5.ppc64.rpm
• kernel-xen-devel-2.6.18-8.1.1.el5.ia64.rpm
• kernel-xen-2.6.18-8.1.1.el5.ia64.rpm
• kernel-devel-2.6.18-8.1.1.el5.i686.rpm
• kernel-2.6.18-8.1.1.el5.ppc64.rpm
• kernel-devel-2.6.18-8.1.1.el5.ppc64.rpm
• kernel-2.6.18-8.1.1.el5.s390x.rpm
• kernel-headers-2.6.18-8.1.1.el5.s390x.rpm

Fixes

• This content is not included.BZ - 229883
• This content is not included.BZ - 229884
• This content is not included.BZ - 229885

CVEs

• CVE-2007-0006
• CVE-2007-0958
• CVE-2007-0005

References

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

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.