The following two updates are available for Debian GNU/Linux: [SECURITY] [DSA 2447-1] tiff security update and [SECURITY] [DSA 2446-1] libpng security update



[SECURITY] [DSA 2447-1] tiff security update

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Debian Security Advisory DSA-2447-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
April 04, 2012 http://www.debian.org/security/faq
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Package : tiff
Vulnerability : integer overflow
Problem type : local(remote)
Debian-specific: no
CVE ID : CVE-2012-1173

Alexander Gavrun discovered an integer overflow in the TIFF library
in the parsing of the TileSize entry, which could result in the execution
of arbitrary code if a malformed image is opened.

For the stable distribution (squeeze), this problem has been fixed in
version 3.9.4-5+squeeze4.

For the unstable distribution (sid), this problem will be fixed soon.

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/

[SECURITY] [DSA 2446-1] libpng security update

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Debian Security Advisory DSA-2446-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
April 04, 2012 http://www.debian.org/security/faq
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Package : libpng
Vulnerability : incorrect memory handling
Problem type : local(remote)
Debian-specific: no
CVE ID : CVE-2011-3048

It was discovered that incorrect memory handling in the png_set_text2()
function of the PNG library could lead to the execution of arbitrary
code.

For the stable distribution (squeeze), this problem has been fixed in
version libpng_1.2.44-1+squeeze4.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you upgrade your incorrect memory handling 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/