This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--===============3464770596191196972==
Content-Type: multipart/signed; micalg=pgp-sha512;
 protocol="application/pgp-signature";
 boundary="------------enigFFC721758FE299CAD9D768FF"

This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enigFFC721758FE299CAD9D768FF
Content-Type: text/plain; charset=ISO-8859-
Content-Transfer-Encoding: quoted-printable

==========================================================================
Ubuntu Security Notice USN-1631-1
November 15, 2012

tiff vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

LibTIFF could be made to crash or run programs as your login if it opened a
specially crafted file.

Software Description:
- tiff: Tag Image File Format (TIFF) library

Details:

It was discovered that LibTIFF incorrectly handled certain malformed images
using the PixarLog compression format. If a user or automated system were
tricked into opening a specially crafted TIFF image, a remote attacker
could crash the application, leading to a denial of service, or possibly
execute arbitrary code with user privileges. (CVE-2012-4447)

Huzaifa S. Sidhpurwala discovered that the ppm2tiff tool incorrectly
handled certain malformed PPM images. If a user or automated system were
tricked into opening a specially crafted PPM image, a remote attacker could
crash the application, leading to a denial of service, or possibly execute
arbitrary code with user privileges. (CVE-2012-4564)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.10:
  libtiff5                        4.0.2-1ubuntu2.1

Ubuntu 12.04 LTS:
  libtiff4                        3.9.5-2ubuntu1.3

Ubuntu 11.10:
  libtiff4                        3.9.5-1ubuntu1.4

Ubuntu 10.04 LTS:
  libtiff4                        3.9.2-2ubuntu0.11

Ubuntu 8.04 LTS:
  libtiff4                        3.8.2-7ubuntu3.14

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1631-1
  CVE-2012-4447, CVE-2012-4564

Package Information:
  https://launchpad.net/ubuntu/+source/tiff/4.0.2-1ubuntu2.1
  https://launchpad.net/ubuntu/+source/tiff/3.9.5-2ubuntu1.3
  https://launchpad.net/ubuntu/+source/tiff/3.9.5-1ubuntu1.4
  https://launchpad.net/ubuntu/+source/tiff/3.9.2-2ubuntu0.11
  https://launchpad.net/ubuntu/+source/tiff/3.8.2-7ubuntu3.14



--------------enigFFC721758FE299CAD9D768FF
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://www.enigmail.net/
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=4aj/
-----END PGP SIGNATURE-----

--------------enigFFC721758FE299CAD9D768FF--


--===============3464770596191196972==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

-- 
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce

--===============3464770596191196972==--