ELA-202-1 gdk-pixbuf security update

serveral underflow/overflow issues

Related CVE CVE-2016-6352 CVE-2017-2870 CVE-2017-6312 CVE-2017-6313 CVE-2017-6314

Several issues in gdk-pixbuf, a library to handle pixbuf, have been found.

CVE-2016-6352 fix for denial of service (out-of-bounds write and crash) via crafted dimensions in an ICO file

CVE-2017-2870 Fix for an exploitable integer overflow vulnerability in the tiff_image_parse functionality. When software is compiled with clang, A specially crafted tiff file can cause a heap-overflow resulting in remote code execution. Debian package is compiled with gcc and is not affected, but probably some downstream is.

CVE-2017-6312 Fix for an integer overflow in io-ico.c that allows attackers to cause a denial of service (segmentation fault and application crash) via a crafted image

CVE-2017-6313 Fix for an integer underflow in the load_resources function in io-icns.c that allows attackers to cause a denial of service (out-of-bounds read and program crash) via a crafted image entry size in an ICO file

CVE-2017-6314 Fix for an infinite loop in the make_available_at_least function in io-tiff.c that allows attackers to cause a denial of service via a large TIFF file.

For Debian 7 Wheezy, these problems have been fixed in version 2.26.1-1+deb7u9.

We recommend that you upgrade your gdk-pixbuf packages.

Further information about Extended LTS security advisories can be found at: https://deb.freexian.com/extended-lts/