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ESB-2008.0094 -- [UNIX/Linux][Debian] -- New yarssr packages fix arbitrary shell command execution

Date: 29 January 2008

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

                   ESB-2008.0094 -- [UNIX/Linux][Debian]
         New yarssr packages fix arbitrary shell command execution
                              29 January 2008

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

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

Product:              yarssr
Publisher:            Debian
Operating System:     Debian GNU/Linux
                      UNIX variants (UNIX, Linux)
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-5837

Original Bulletin:    http://www.debian.org/security/2008/dsa-1477

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

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- - ------------------------------------------------------------------------
Debian Security Advisory DSA-1477-1                  security@debian.org
http://www.debian.org/security/                       Moritz Muehlenhoff
January 27, 2008                      http://www.debian.org/security/faq
- - ------------------------------------------------------------------------

Package        : yarssr
Vulnerability  : missing input sanitising
Problem type   : remote
Debian-specific: no
CVE Id(s)      : CVE-2007-5837

Duncan Gilmore discovered that yarssr, an RSS aggregator and reader,
performs insufficient input sanitising, which could result in the
execution of arbitrary shell commands if a malformed feed is read.

For the stable distribution (etch), this problem has been fixed in
version 0.2.2-1etch1.

Due to a technical limitation of the archive management scripts, the
fix for the old stable distribution (sarge) needs to be postponed
by a few days.

We recommend that you upgrade your yarssr 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 4.0 (stable)
- - -------------------

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

Source archives:

  http://security.debian.org/pool/updates/main/y/yarssr/yarssr_0.2.2-1etch1.diff.gz
    Size/MD5 checksum:     6420 105059b6e1b31d82b77ae3bb2d788fa6
  http://security.debian.org/pool/updates/main/y/yarssr/yarssr_0.2.2.orig.tar.gz
    Size/MD5 checksum:    21077 1825b214043c8d37fc8bad6935f0137a
  http://security.debian.org/pool/updates/main/y/yarssr/yarssr_0.2.2-1etch1.dsc
    Size/MD5 checksum:      584 83e4a6cb616defe9d78f55ef06d6379c

Architecture independent packages:

  http://security.debian.org/pool/updates/main/y/yarssr/yarssr_0.2.2-1etch1_all.deb
    Size/MD5 checksum:    23498 d8bd255215bdb7042260997fb76741cd


  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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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
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which may arise from following or acting on information or advice contained in
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NOTE: This is only the original release of the security bulletin.  It may
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from the author's website to ensure that the information is still current.

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        http://www.auscert.org.au/render.html?cid=1980

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================

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