Updated kernel packages that address several security vulnerabilites, fix a number of bugs, and update various drivers are now available.
The Linux kernel handles the basic functions of the operating system. A flaw in bounds checking in the do_brk() function in the Linux kernel versions 2.4.22 and previous can allow a local attacker to gain root privileges. This issue is known to be exploitable; an exploit (for x86 architectures) has been seen in the wild that takes advantage of this vulnerability. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0961 to this issue. The execve system call in Linux 2.4.x records the file descriptor of the executable process in the file table of the calling process, which allows local users to gain read access to restricted file descriptors. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0476 to this issue. A hangcheck timer (which is used to detect system hangs or pauses) has been added. In addition, a number of drivers have been updated: - e1000 5.2.20-k1 - cmpci 5.64 - aic7xxx 6.2.36 - aic79xx 1.3.10 - ips 6.10.52 - cciss 2.4.50 - fusion 2.05.05+ All users of IA64 systems should upgrade to these errata packages, which contain patches to the 2.4.18 kernel addressing these issues.