Linux Today: Linux News On Internet Time.

More on LinuxToday

Debian GNU/Linux Advisory: kernel-patch-2.4.18-powerpc

Jun 10, 2003, 14:29 (0 Talkback[s])

Debian Security Advisory DSA 312-1 security@debian.org
http://www.debian.org/security/ Matt Zimmerman
June 9th, 2003 http://www.debian.org/security/faq

Package : kernel-patch-2.4.18-powerpc
Vulnerability : several
Problem-Type : local, remote
Debian-specific : no
CVE Ids : CVE-2002-0429 CAN-2003-0001 CAN-2003-0127 CAN-2003-0244 CAN-2003-0246 CAN-2003-0247 CAN-2003-0248 CAN-2003-0364

A number of vulnerabilities have been discovered in the Linux kernel.

  • - CVE-2002-0429: The iBCS routines in arch/i386/kernel/traps.c for Linux kernels 2.4.18 and earlier on x86 systems allow local users to kill arbitrary processes via a a binary compatibility interface (lcall)
  • - CAN-2003-0001: Multiple ethernet Network Interface Card (NIC) device drivers do not pad frames with null bytes, which allows remote attackers to obtain information from previous packets or kernel memory by using malformed packets
  • - CAN-2003-0127: The kernel module loader allows local users to gain root privileges by using ptrace to attach to a child process that is spawned by the kernel
  • - CAN-2003-0244: The route cache implementation in Linux 2.4, and the Netfilter IP conntrack module, allows remote attackers to cause a denial of service (CPU consumption) via packets with forged source addresses that cause a large number of hash table collisions related to the PREROUTING chain
  • - CAN-2003-0246: The ioperm system call in Linux kernel 2.4.20 and earlier does not properly restrict privileges, which allows local users to gain read or write access to certain I/O ports.
  • - CAN-2003-0247: vulnerability in the TTY layer of the Linux kernel 2.4 allows attackers to cause a denial of service ("kernel oops")
  • - CAN-2003-0248: The mxcsr code in Linux kernel 2.4 allows attackers to modify CPU state registers via a malformed address.
  • - CAN-2003-0364: The TCP/IP fragment reassembly handling in the Linux kernel 2.4 allows remote attackers to cause a denial of service (CPU consumption) via certain packets that cause a large number of hash table collisions

This advisory covers only the powerpc architecture. Other architectures will be covered by separate advisories.

For the stable distribution (woody) on the powerpc architecture, these problems have been fixed in version 2.4.18-1woody1.

For the unstable distribution (sid) these problems are fixed in version 2.4.20-2.

We recommend that you update your kernel packages.

NOTE: A system reboot will be required immediately after the upgrade in order to replace the running kernel. Remember to read carefully and follow the instructions given during the kernel upgrade process.

Upgrade Instructions

wget url

will fetch the file for you
dpkg -i file.deb

will install the referenced file.

If you are using the apt-get package manager, use the line for sources.list as given below:

apt-get update

will update the internal database apt-get upgrade

will install corrected packages

You may use an automated update by adding the resources from the footer to the proper configuration.

Debian GNU/Linux 3.0 alias woody

Source archives:

Size/MD5 checksum: 713 5e68ebec8c5964802d1c408dbb62d910
Size/MD5 checksum: 79339 bfb459f978ac40898f8e10d5e302873d

Architecture independent components:

Size/MD5 checksum: 78796 63903e7035ddc4c3c054d18c485aa54f

PowerPC architecture:

Size/MD5 checksum: 3415000 6aeb5eab8171baf83cb8e81a30c9397f
Size/MD5 checksum: 9450540 b66d57ddaa4d7dffe99024250935cee2
Size/MD5 checksum: 10134844 b5e105cc2087c65889ea83eb29fd91ae http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc-smp_2.4.18-1woody1_powerpc.deb
Size/MD5 checksum: 10379272 6829c60296a049950d79ddd0a488f8d4

These files will probably be moved into the stable distribution on its next revision.

For apt-get: deb http://security.debian.org/ stable/updates main For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main Mailing list: debian-security-announce@lists.debian.org Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>