[Secure-testing-team] Bug#869823: tiff: CVE-2017-11613

[Salvatore Bonaccorso]

Source: tiff
Version: 4.0.8-1
Severity: important
Tags: security upstream

Hi,

the following vulnerability was published for tiff.

CVE-2017-11613[0]:
| In LibTIFF 4.0.8, 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.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-11613
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11613
[1] https://gist.github.com/dazhouzhou/1a3b7400547f23fe316db303ab9b604f

Can you check if that was as well reported upstream
Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore