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engarde-users: [EnGarde] [ESA-20030318-009] Several 'kernel' vul

[EnGarde] [ESA-20030318-009] Several 'kernel' vulnerabilities

From: EnGarde Secure Linux <security_at_nospam>
Date: Tue Mar 18 2003 - 15:39:17 GMT
To: engarde-security@guardiandigital.com, bugtraq@securityfocus.com

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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:
  2. booted into a "standard" kernel; or
  3. LIDS is disabled (/sbin/lidsadm -S -- -LIDS_GLOBAL)
  4. 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.

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