RedHat Update for kernel RHSA-2008:0973-03

Solution
Please Install the Updated Packages.
Insight
The kernel packages contain the Linux kernel, the core of any Linux operating system. This update addresses the following security issues: * Tavis Ormandy discovered a deficiency in the Linux kernel 32-bit and 64-bit emulation. This could allow a local, unprivileged user to prepare and run a specially-crafted binary which would use this deficiency to leak uninitialized and potentially sensitive data. (CVE-2008-0598, Important) * a possible kernel memory leak was found in the Linux kernel Simple Internet Transition (SIT) INET6 implementation. This could allow a local, unprivileged user to cause a denial of service. (CVE-2008-2136, Important) * missing capability checks were found in the SBNI WAN driver which could allow a local user to bypass intended capability restrictions. (CVE-2008-3525, Important) * the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could allow a local, unprivileged user to obtain access to privileged information. (CVE-2008-4210, Important) * a buffer overflow flaw was found in Integrated Services Digital Network (ISDN) subsystem. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2007-6063, Moderate) * multiple NULL pointer dereferences were found in various Linux kernel network drivers. These drivers were missing checks for terminal validity, which could allow privilege escalation. (CVE-2008-2812, Moderate) * a deficiency was found in the Linux kernel virtual filesystem (VFS) implementation. This could allow a local, unprivileged user to attempt file creation within deleted directories, possibly causing a denial of service. (CVE-2008-3275, Moderate) This update also fixes the following bugs: * the incorrect kunmap function was used in nfs_xdr_readlinkres. kunmap() was used where kunmap_atomic() should have been. As a consequence, if an NFSv2 or NFSv3 server exported a volume containing a symlink which included a path equal to or longer than the local system's PATH_MAX, accessing the link caused a kernel oops. This has been corrected in this update. * mptctl_gettargetinfo did not check if pIoc3 was NULL before using it as a pointer. This caused a kernel panic in mptctl_gettargetinfo in some circumstances. A check has been added which prevents this. * lost tick compensation code in the timer interrupt routine triggered without apparent cause. When running as a fully-virtuali ... Description truncated, for more information please check the Reference URL
Affected
kernel on Red Hat Enterprise Linux AS version 3, Red Hat Enterprise Linux ES version 3, Red Hat Enterprise Linux WS version 3
References