-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 +------------------------------------------------------------------------+ | EnGarde Secure Linux Security Advisory March 18, 2003 | | http://www.engardelinux.org/ ESA-20030318-009 | | | | Package: kernel | | Summary: several vulnerabilities. | +------------------------------------------------------------------------+ EnGarde Secure Linux is a secure distribution of Linux that features improved access control, host and network intrusion detection, Web based secure remote management, e-commerce, and integrated open source security tools. OVERVIEW - -------- This update fixes several vulnerabilities in the Linux kernel. CAN-2002-1380 ------------- Local users could cause a denial of service by using the mmap() function with the PROT_READ parameter to access memory pages via the /proc/pid/mem interface. CAN-2003-0001 ------------- Most of the Ethernet card (NIC) device drivers did not pad frames with null bytes, leading to the potential leakage of kernel memory. CAN-2003-0127 ------------- There is a vulnerability in the kernel module loader which could allow a local attacker to obtain root privileges by using ptrace to attach to a child process spawned by the kernel when a new module is loaded. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CAN-2002-1380, CAN-2003-0001, and CAN-2003-0127 to these issues. All users are recommended to upgrade immediately using the special SOLUTION in this advisory. SOLUTION - -------- Users of the EnGarde Professional edition can use the Guardian Digital Secure Network to update their systems automatically. EnGarde Community users should upgrade to the most recent version as outlined in this advisory. Updates may be obtained from: ftp://ftp.engardelinux.org/pub/engarde/stable/updates/ http://ftp.engardelinux.org/pub/engarde/stable/updates/ Please read and understand this entire section before you attempt to upgrade the kernel. Initial Steps ------------- 1) Verify the machine is either: a) booted into a "standard" kernel; or b) LIDS is disabled (/sbin/lidsadm -S -- -LIDS_GLOBAL) 2) Determine which kernels you currently have installed: # rpm -qa --qf "%{NAME}\n" | grep kernel 3) Download the new kernels that match what you have installed (based on step 2) from the "UPDATED PACKAGES" section of this advisory. Installation Steps ------------------ 4) Install the new packages. The packages will automagically update /etc/lilo.conf by commenting out any old EnGarde images and replacing them with the new ones: # rpm --replacefiles -i kernel1 kernel2 ... 5) Re-run LILO. If you see any errors then open /etc/lilo.conf in your favorite text editor and make the appropriate changes: # /sbin/lilo Final Steps ----------- 6) If you did not see any LILO errors then your new kernel is now installed and your machine is ready to be rebooted: # reboot UPDATED PACKAGES - ---------------- These updated packages are for EnGarde Secure Linux Community Edition. Source Packages: SRPMS/kernel-2.2.19-1.0.30.src.rpm MD5 Sum: 5385352091faa056106dc1e92f7af7c1 Binary Packages: i386/kernel-2.2.19-1.0.30.i386.rpm MD5 Sum: 9a16886321cc19365ea1a7d27d927b83 i386/kernel-lids-mods-2.2.19-1.0.30.i386.rpm MD5 Sum: 784e3abd25e27db6036bd7638ac22ef6 i386/kernel-smp-lids-mods-2.2.19-1.0.30.i386.rpm MD5 Sum: 42a9c7d7b5879e061d59d1008011dab7 i386/kernel-smp-mods-2.2.19-1.0.30.i386.rpm MD5 Sum: 64b89dcd411abdd455bbb55539a29df6 i686/kernel-2.2.19-1.0.30.i686.rpm MD5 Sum: af21a043fcde3004ad645ca4bb26117e i686/kernel-lids-mods-2.2.19-1.0.30.i686.rpm MD5 Sum: 8f90859a9313f731c710247e27915a42 i686/kernel-smp-lids-mods-2.2.19-1.0.30.i686.rpm MD5 Sum: 74ff5e04d89e9a5b60d79f3fc0491034 i686/kernel-smp-mods-2.2.19-1.0.30.i686.rpm MD5 Sum: 1fa7cffecc2fd417713f67c4bb19da90 REFERENCES - ---------- Guardian Digital's public key: http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY Official Web Site of the Linux Kernel: http://www.kernel.org/ Security Contact: security@guardiandigital.com EnGarde Advisories: http://www.engardelinux.org/advisories.html - -------------------------------------------------------------------------- $Id: ESA-20030318-009-kernel,v 1.2 2003/03/18 15:35:22 rwm Exp $ - -------------------------------------------------------------------------- Author: Ryan W. Maple <ryan@guardiandigital.com> Copyright 2003, Guardian Digital, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE+dz2sHD5cqd57fu0RAuvSAJ9lXxgMrxLUL4dbJN0LhFrqjIXMzACgmPyD pgl8KGYszwaCO5uGbL7laZs= =XrzW -----END PGP SIGNATURE-----
