Debian Security Advisory

-









































































Debian Security Advisory DSA 633-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
January 11th, 2005                      http://www.debian.org/security/faq



















































































































































-









































































Package        : bmv
Vulnerability  : insecure temporary file
Problem-Type   : local
Debian-specific: no
CVE ID         : CAN-2003-0014

Peter Samuelson, upstream maintainer of bmv, a PostScript viewer for
SVGAlib, discovered that temporary files are created in an insecure
fashion.  A malicious local user could cause arbitrary files to be
overwritten by a symlink attack.

For the stable distribution (woody) this problem has been
fixed in version 1.2-14.2.

For the unstable distribution (sid) this problem has been fixed in
version 1.2-17.

We recommend that you upgrade your bmv packages.

-









































































Debian Security Advisory DSA 634-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
January 11th, 2005                      http://www.debian.org/security/faq



















































































































































-









































































Package        : hylafax
Vulnerability  : weak hostname and username validation
Problem-Type   : local/remote
Debian-specific: no
CVE ID         : CAN-2004-1182

Patrice Fournier discovered a vulnerability in the authorisation
subsystem of hylafax, a flexible client/server fax system.  A local or
remote user guessing the contents of the hosts.hfaxd database could
gain unauthorised access to the fax system.

Some installations of hylafax may actually utilise the weak hostname
and username validation for authorized uses.  For example, hosts.hfaxd
entries that may be common are

  192.168.0
  username:uid:pass:adminpass
  user@host

After updating, these entries will need to be modified in order to
continue to function.  Respectively, the correct entries should be

  192.168.0.[0-9]+
  username@:uid:pass:adminpass
  user@host

Unless such maching of "username" with "otherusername" and "host" with
"hostname" is desired, the proper form of these entries should include
the delimiter and markers like this

  @192.168.0.[0-9]+$
  ^username@:uid:pass:adminpass
  ^user@host$

For the stable distribution (woody) this problem has been fixed in
version 4.1.1-3.1.

For the unstable distribution (sid) this problem has been fixed in
version 4.2.1-1.

We recommend that you upgrade your hylafax packages.

-









































































Debian Security Advisory DSA 635-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
January 12th, 2005                      http://www.debian.org/security/faq



















































































































































-









































































Package        : exim
Vulnerability  : buffer overflow
Problem-Type   : remote
Debian-specific: no
CVE ID         : CAN-2005-0021
Debian Bug     : 289046

Philip Hazel announced a buffer overflow in the host_aton function in
exim, the default mail-tranport-agent in Debian, which can lead to the
execution of arbitrary code via an illegal IPv6 address.

For the stable distribution (woody) this problem has been fixed in
version 3.35-1woody4.

For the unstable distribution (sid) this problem has been fixed in
version 3.36-13 of exim and 4.34-10 of exim4.

We recommend that you upgrade your exim and exim4 packages.