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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.0795
             New barnowl packages fix arbitrary code execution
                             6 September 2010

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           barnowl
Publisher:         Debian
Operating System:  Debian GNU/Linux 5
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2010-2725  

Original Bulletin: 
   http://www.debian.org/security/2010/dsa-2102

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running barnowl check for an updated version of the software for 
         their operating system.

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Debian Security Advisory DSA-2102-1                  security@debian.org
http://www.debian.org/security/                       Sébastien Delafond
Sep 3, 2010                           http://www.debian.org/security/faq
- - - ------------------------------------------------------------------------

Package        : barnowl
Vulnerability  : unchecked return value
Problem type   : remote
Debian-specific: no
CVE Id         : CVE-2010-2725
Debian Bug     : 593299

It has been discovered that in barnowl, a curses-based instant-messaging
client, the return codes of calls to the ZPending and ZReceiveNotice
functions in libzephyr were not checked, allowing attackers to cause a
denial of service (crash of the application), and possibly execute
arbitrary code.

For the stable distribution (lenny), this problem has been fixed in
version 1.0.1-4+lenny2.

For the testing distribution (squeeze), this problem has been fixed in
version 1.6.2-1.

For the unstable distribution (sid), this problem has been fixed in
version 1.6.2-1.

We recommend that you upgrade your barnowl packages.

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 5.0 alias lenny
- - --------------------------------

Debian (stable)
- - ---------------

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

Source archives:

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1.orig.tar.gz
    Size/MD5 checksum:   606923 5036fe3559becc5fa81de9a4dc028767
  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2.dsc
    Size/MD5 checksum:     1131 2cf38ea3565cbc819c2599045d41e594
  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2.diff.gz
    Size/MD5 checksum:    17407 6eef7b2e31097c85d1fce993e9d08f27

Architecture independent packages:

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl-irc_1.0.1-4+lenny2_all.deb
    Size/MD5 checksum:    39502 7dd6dd51b6f8fbb189e174390973d0e0

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_alpha.deb
    Size/MD5 checksum:   521794 5e8b418204f0ea86cf2d44333c3df11f

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_amd64.deb
    Size/MD5 checksum:   498014 191fb4aa4ab528baf40b59f18d7eb36c

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_arm.deb
    Size/MD5 checksum:   453436 42b05b0c60b5c90129605c34daffcf11

armel architecture (ARM EABI)

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_armel.deb
    Size/MD5 checksum:   453674 ef893ba37cebe84bf3af1bed1e16b1af

hppa architecture (HP PA RISC)

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_hppa.deb
    Size/MD5 checksum:   485238 f482a5079043bb2955751b535f60c1c5

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_i386.deb
    Size/MD5 checksum:   468532 e70847f4b14dde80a4afcbf095f738bf

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_ia64.deb
    Size/MD5 checksum:   580308 44a07fa48b54dca15fed0c158129c3a8

mips architecture (MIPS (Big Endian))

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_mips.deb
    Size/MD5 checksum:   461644 69976cc4a85f19bf4efe074800833baa

mipsel architecture (MIPS (Little Endian))

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_mipsel.deb
    Size/MD5 checksum:   460558 1a8aca0efbb4b986a15f202f7cc4c638

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_powerpc.deb
    Size/MD5 checksum:   485170 3389955dfaea0e8eadd03a944e6e9ab8

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_s390.deb
    Size/MD5 checksum:   488548 4f49e79c9d4cb4d0af71f846521c21fa

sparc architecture (Sun SPARC/UltraSPARC)

  http://security.debian.org/pool/updates/main/b/barnowl/barnowl_1.0.1-4+lenny2_sparc.deb
    Size/MD5 checksum:   463242 ed7a0bd6e9330b3cf534e8069cbce8c4


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