[Secure-testing-team] Bug#872607: tiff: CVE-2017-12944

[Salvatore Bonaccorso]

Source: tiff
Version: 4.0.8-4
Severity: important
Tags: patch security upstream
Forwarded: http://bugzilla.maptools.org/show_bug.cgi?id=2725

Hi,

the following vulnerability was published for tiff.

CVE-2017-12944[0]:
| The TIFFReadDirEntryArray function in tif_read.c in LibTIFF 4.0.8
| mishandles memory allocation for short files, which allows remote
| attackers to cause a denial of service (allocation failure and
| application crash) in the TIFFFetchStripThing function in tif_dirread.c
| during a tiff2pdf invocation.

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-2017-12944
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12944
[1] http://bugzilla.maptools.org/show_bug.cgi?id=2725

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore