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Date: Mon, 08 Jan 2007 17:41:41 +0100
From: Noah Meyerhans <noahm@...ian.org>
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 1247-1] New libapache-mod-auth-kerb packages fix remote denial of service

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- ------------------------------------------------------------------------
Debian Security Advisory DSA-1247-1                security@...ian.org
http://www.debian.org/security/                         Noah Meyerhans
January 08, 2007
- ------------------------------------------------------------------------

Package        : libapache-mod-auth-kerb
Vulnerability  : heap overflow
Problem type   : remote
Debian-specific: no
CVE Id(s)      : CVE-2006-5989
BugTraq ID     : 21214
Debian Bug     : 400589

An off-by-one error leading to a heap-based buffer overflow has been
identified in libapache-mod-auth-kerb, an Apache module for Kerberos
authentication.  The error could allow an attacker to trigger an
application crash or potentially execute arbitrary code by sending a
specially crafted kerberos message.

For the stable distribution (sarge), this problem has been fixed in
version 4.996-5.0-rc6-1sarge1.

For the unstable version (sid) and the forthcoming stable version
(etch), this problem has been fixed in version 5.3-1.

We recommend that you upgrade your libapache-mod-auth-kerb package.

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 3.1 (stable)
- -------------------

Stable updates are available for alpha, amd64, arm, hppa, i386, ia64, m68k, mips, mipsel, powerpc, s390 and sparc.

Source archives:

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1.dsc
    Size/MD5 checksum:      744 5e045be08755cab316754a7f214eeaae
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1.diff.gz
    Size/MD5 checksum:    49849 3ebbb5101629ddd8917159c1cbdf20ab
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6.orig.tar.gz
    Size/MD5 checksum:    68787 b6a6c80b25b362eb7394f69cdc91f76d

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_amd64.deb
    Size/MD5 checksum:    28574 65078aa7e78f2728499849047eaf2fbb
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_amd64.deb
    Size/MD5 checksum:    27148 60ce4d39ac022335bd98ea7ed412f24d

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_arm.deb
    Size/MD5 checksum:    24078 053e0b54c348251be97c7708d43b5542
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_arm.deb
    Size/MD5 checksum:    25498 e1882b8b0e408cb2339ef4d43c800bd7

hppa architecture (HP PA RISC)

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_hppa.deb
    Size/MD5 checksum:    28796 e29c79c55af53fc66cc1ea9084c63403
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_hppa.deb
    Size/MD5 checksum:    27246 4d2394e0fc2a429c03ad6063c9ea2cce

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_i386.deb
    Size/MD5 checksum:    25014 20666ea4edbce196ba0b4ea120425af5
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_i386.deb
    Size/MD5 checksum:    27176 6e7e40781f4beadec9226a918c8d4591

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_ia64.deb
    Size/MD5 checksum:    31886 8146de1df6e65b32e213bfdc9b1320d2
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_ia64.deb
    Size/MD5 checksum:    33946 a2f93809df0703311c64ab28bc71a435

m68k architecture (Motorola Mc680x0)

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_m68k.deb
    Size/MD5 checksum:    24592 111a715b11307ad90a8c3c72d144067d
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_m68k.deb
    Size/MD5 checksum:    24904 058b9470f905b33b7db5c1b7c82b704c

mips architecture (MIPS (Big Endian))

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_mips.deb
    Size/MD5 checksum:    26282 32ea8b07b5884759d0be1ae80aff2cbe
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_mips.deb
    Size/MD5 checksum:    24916 3086189cc29784d14c3c262bf5db79c6

mipsel architecture (MIPS (Little Endian))

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_mipsel.deb
    Size/MD5 checksum:    24750 4e60ed40a92ebd95eac8b1b1a047eeb1
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_mipsel.deb
    Size/MD5 checksum:    26078 3debbde1ea8f7bfdded64641019ee035

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_powerpc.deb
    Size/MD5 checksum:    27564 224b00ca30cfbc147af1359bb97d5bf2
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_powerpc.deb
    Size/MD5 checksum:    26050 26618825bca0ebce62a17f372c945dc5

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_s390.deb
    Size/MD5 checksum:    28890 4a105cf32ef83ab8b2f3ea41a3303d69
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_s390.deb
    Size/MD5 checksum:    27520 9582e86ab07a5fe726c88c35b4463a74

sparc architecture (Sun SPARC/UltraSPARC)

  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache-mod-auth-kerb_4.996-5.0-rc6-1sarge1_sparc.deb
    Size/MD5 checksum:    24014 d7e4b7d6fe57acd4cf5bb100e35a964f
  http://security.debian.org/pool/updates/main/liba/libapache-mod-auth-kerb/libapache2-mod-auth-kerb_4.996-5.0-rc6-1sarge1_sparc.deb
    Size/MD5 checksum:    25022 78f3c5282673219f044955496aaed10b


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

- ---------------------------------------------------------------------------------
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@...ts.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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