Debian Security Advisory

DSA-090-1 xtel -- symlink attack

Date Reported:
05 Dec 2001
Affected Packages:
xtel
Vulnerable:
Yes
Security database references:
In the Bugtraq database (at SecurityFocus): BugTraq ID 3626.
In Mitre's CVE dictionary: CVE-2002-0334.
More information:

The xtel (an X emulator for minitel) package as distributed with Debian GNU/Linux 2.2 has two possible symlink attacks:

  • xteld creates a temporary file /tmp/.xtel-<user> without checking for symlinks.
  • when printing a hardcopy xtel would create a temporary file without protecting itself against symlink attacks.

Both problems have been fixed in version 3.2.1-4.potato.1 .

Fixed in:

Debian GNU/Linux 2.2 (potato)

Source:
http://security.debian.org/dists/stable/updates/main/source/xtel_3.2.1-4.potato.1.diff.gz
http://security.debian.org/dists/stable/updates/main/source/xtel_3.2.1-4.potato.1.dsc
http://security.debian.org/dists/stable/updates/main/source/xtel_3.2.1.orig.tar.gz
Alpha:
http://security.debian.org/dists/stable/updates/main/binary-alpha/xtel_3.2.1-4.potato.1_alpha.deb
ARM:
http://security.debian.org/dists/stable/updates/main/binary-arm/xtel_3.2.1-4.potato.1_arm.deb
Motorola 680x0:
http://security.debian.org/dists/stable/updates/main/binary-m68k/xtel_3.2.1-4.potato.1_m68k.deb
Intel IA-32:
http://security.debian.org/dists/stable/updates/main/binary-i386/xtel_3.2.1-4.potato.1_i386.deb
PowerPC:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/xtel_3.2.1-4.potato.1_powerpc.deb
Sun Sparc:
http://security.debian.org/dists/stable/updates/main/binary-sparc/xtel_3.2.1-4.potato.1_sparc.deb

MD5 checksums of the listed files are available in the original advisory.