7.8 - RHSA-2006:0140

Problem Description:

Updated kernel packages that fix several security issues in the Red Hat Enterprise Linux 3 kernel are now available.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Desktop version 3 - i386, x86_64 Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

3. Problem description:

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 network IGMP processing that a allowed a remote user on the local network to cause a denial of service (disabling of multicast reports) if the system is running multicast applications (CVE-2002-2185, moderate)

- - a flaw in remap_page_range() with O_DIRECT writes that allowed a local user to cause a denial of service (crash) (CVE-2004-1057, important)

- - a flaw in exec() handling on some 64-bit architectures that allowed a local user to cause a denial of service (crash) (CVE-2005-2708, important)

- - a flaw in procfs handling during unloading of modules that allowed a local user to cause a denial of service or potentially gain privileges (CVE-2005-2709, moderate)

- - a flaw in IPv6 network UDP port hash table lookups that allowed a local user to cause a denial of service (hang) (CVE-2005-2973, important)

- - a flaw in 32-bit-compat handling of the TIOCGDEV ioctl that allowed a local user to cause a denial of service (crash) (CVE-2005-3044, important)

- - a network buffer info leak using the orinoco driver that allowed a remote user to possibly view uninitialized data (CVE-2005-3180, important)

- - a flaw in IPv4 network TCP and UDP netfilter handling that allowed a local user to cause a denial of service (crash) (CVE-2005-3275, important)

- - a flaw in the IPv6 flowlabel code that allowed a local user to cause a denial of service (crash) (CVE-2005-3806, important)

- - a flaw in network ICMP processing that allowed a local user to cause a denial of service (memory exhaustion) (CVE-2005-3848, important)

- - a flaw in file lease time-out handling that allowed a local user to cause a denial of service (log file overflow) (CVE-2005-3857, moderate)

- - a flaw in network IPv6 xfrm handling that allowed a local user to cause a denial of service (memory exhaustion) (CVE-2005-3858, important)

All Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architecture and configurations as listed in this erratum.

4. Solution:

Before applying this update, make sure that all previously released errata relevant to your system have been applied. Use Red Hat Network to download and update your packages. To launch the Red Hat Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the following Web page for the System Administration or Customization guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

5. Bug IDs fixed (http://bugzilla.redhat.com/):

137820 - CVE-2004-1057 VM_IO refcount issue 161925 - CVE-2005-2708 user code panics kernel in exec.c 168661 - CVE-2005-3044 lost fput could lead to DoS 168925 - CVE-2005-2709 More sysctl flaws 170278 - CVE-2005-3180 orinoco driver information leakage 170774 - CVE-2005-2973 ipv6 infinite loop 171386 - CVE-2005-3275 NAT DoS 174082 - CVE-2005-3806 ipv6 DOS 174338 - CVE-2005-3857 lease printk DoS 174344 - CVE-2005-3858 ip6_input_finish DoS 174347 - CVE-2005-3848 dst_entry leak DoS 174808 - CVE-2002-2185 IGMP DoS