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Debian Security Advisory DSA-2091-1                  security@debian.org
http://www.debian.org/security/                            Luciano Bello
August 12, 2010                       http://www.debian.org/security/faq
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Package        : squirrelmail
Vulnerability  : No user-specific token implemented
Problem type   : remote
Debian-specific: no
Debian bug     : 543818
CVE ID         : CVE-2009-2964 CVE-2010-2813

SquirrelMail, a webmail application, does not employ a user-specific token 
for webforms. This allows a remote attacker to perform a Cross Site Request 
Forgery (CSRF) attack. The attacker may hijack the authentication of 
unspecified victims and send messages or change user preferences among other 
actions, by tricking the victim into following a link controled by the 
offender.

In addition, a denial-of-service was fixed, which could be triggered when a 
passwords containing 8-bit characters was used to log in (CVE-2010-2813).

For the stable distribution (lenny), these problems have been fixed in
version 1.4.15-4+lenny3.1.

For the testing distribution (squeeze) and the unstable distribution (sid),
these problems have been fixed in version 1.4.21-1.

We recommend that you upgrade your squirrelmail 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
- --------------------------------

Source archives:

  squirrelmail_1.4.15-4+lenny3.1.diff.gz
    Size/MD5 checksum:    34647 2251562662703a0d8e4f0de309ca60a6
  squirrelmail_1.4.15.orig.tar.gz
    Size/MD5 checksum:   621320 87b466fef98e770307afffd75fe25589
  squirrelmail_1.4.15-4+lenny3.1.dsc
    Size/MD5 checksum:     1240 a4e2ab21379259946f02a1d30831fe6d

Architecture independent packages:

  squirrelmail_1.4.15-4+lenny3.1_all.deb
    Size/MD5 checksum:   615152 d08549fd86ffec2ae16b36e358f50cd6


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

-
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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-securitydists/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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