[Secure-testing-team] Bug#885125: imagemagick: CVE-2017-17879: heap-buffer-overflow in ReadOneMNGImage

[Salvatore Bonaccorso]

Source: imagemagick
Version: 8:6.9.7.4+dfsg-1
Severity: important
Tags: patch security upstream
Forwarded: https://github.com/ImageMagick/ImageMagick/issues/906

Hi,

the following vulnerability was published for imagemagick.

CVE-2017-17879[0]:
| In ImageMagick 7.0.7-16 Q16 x86_64 2017-12-21, there is a heap-based
| buffer over-read in ReadOneMNGImage in coders/png.c, related to length
| calculation and caused by an off-by-one error.

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-2017-17879
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17879
[1] https://github.com/ImageMagick/ImageMagick/issues/906

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore