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Claws Mail: Insecure temporary file creation


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200801-03 / claws-mail
Release Date January 09, 2008
Latest Revision January 09, 2008: 01
Impact normal
Exploitable local
Package Vulnerable versions Unaffected versions Architecture(s)
mail-client/claws-mail < 3.0.2-r1 >= 3.0.2-r1 All supported architectures

Related bugreports: #201244


Claws Mail uses temporary files in an insecure manner, allowing for a symlink attack.

2.  Impact Information


Claws Mail is a GTK based e-mail client.


Nico Golde from Debian reported that the script that is part of the Claws Mail tools creates temporary files in an insecure manner.


A local attacker could exploit this vulnerability to conduct symlink attacks to overwrite files with the privileges of the user running Claws Mail.

3.  Resolution Information


There is no known workaround at this time.


All Claws Mail users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/claws-mail-3.0.2-r1"

4.  References


Page updated January 09, 2008

Summary: This is a Gentoo Linux Security Advisory

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