| Package | tiff3 |
|---|---|
| Version | 3.9.6-11+deb7u12 |
| Related CVEs | CVE-2017-11613 CVE-2018-5784 |
Two flaws were found in the tiff3 image library that may allow remote attackers to cause a denial of service (memory exhaustion or application crash) or possibly have unspecified other impact via a crafted image file.
CVE-2017-11613
In tiff3 there is a denial of service vulnerability in the TIFFOpen
function. A crafted input will lead to a denial of service attack. During
the TIFFOpen process, td_imagelength is not checked. The value of
td_imagelength can be directly controlled by an input file. In the
ChopUpSingleUncompressedStrip function, the _TIFFCheckMalloc function is
called based on td_imagelength. If we set the value of td_imagelength
close to the amount of system memory, it will hang the system or trigger
the OOM killer.
CVE-2018-5784
A flaw was found in tiff3, there is an uncontrolled resource consumption in
the TIFFSetDirectory function of tif_dir.c. Remote attackers could leverage
this vulnerability to cause a denial of service via a crafted tif file.
This is possible because the declared number of directory entries is not
validated against the actual number of directory entries.
For Debian 7 Wheezy, these problems have been fixed in version 3.9.6-11+deb7u12.
We recommend that you upgrade your tiff3 packages.
Further information about Extended LTS security advisories can be found in the dedicated section of our website.