U radu programskog paketa Tiff uočeno je više sigurnosnih propusta. Zlonamjerni ih korisnici mogu iskoristiti za rušenje ranjivog sustava, pokretanje proizvoljnog programskog koda i dobivanje većih ovlasti.

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Debian Security Advisory DSA-2552-1                   Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
http://www.debian.org/security/                             Luciano Bello
September 26, 2012                     http://www.debian.org/security/faq
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Package        : tiff
Vulnerability  : several
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2010-2482 CVE-2010-2595 CVE-2010-2597 CVE-2010-2630 
                 CVE-2010-4665 CVE-2012-2113 CVE-2012-3401
Debian Bug     : 678140

Several vulnerabilities were discovered in Tiff, a library set and tools 
to support the Tag Image File Format (TIFF), allowing denial of service and
potential privilege escalation.

These vulnerabilities can be exploited via a specially crafted TIFF image.

CVE-2012-2113
  The tiff2pdf utility has an integer overflow error when parsing images.

CVE-2012-3401
  Huzaifa Sidhpurwala discovered heap-based buffer overflow in the 
  t2p_read_tiff_init() function.

CVE-2010-2482
  An invalid td_stripbytecount field is not properly handle and can trigger a
  NULL pointer dereference.

CVE-2010-2595
  An array index error, related to "downsampled OJPEG input." in the
  TIFFYCbCrtoRGB function causes an unexpected crash.

CVE-2010-2597
  Also related to "downsampled OJPEG input", the TIFFVStripSize function crash
  unexpectly.

CVE-2010-2630
  The TIFFReadDirectory function does not properly validate the data types of 
  codec-specific tags that have an out-of-order position in a TIFF file.

CVE-2010-4665
  The tiffdump utility has an integer overflow in the ReadDirectory function.

For the stable distribution (squeeze), these problems have been fixed in
version 3.9.4-5+squeeze5.

For the testing distribution (wheezy), these problems have been fixed in
version 4.0.2-2.

For the unstable distribution (sid), these problems have been fixed in
version 4.0.2-2.

We recommend that you upgrade your tiff packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
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