[Secure-testing-team] Bug#885942: imagemagick: CVE-2017-17682: cpu exhaustion in ReadWPGImage

[Salvatore Bonaccorso]

Source: imagemagick
Version: 8:6.9.7.4+dfsg-11
Severity: important
Tags: patch security upstream
Forwarded: https://github.com/ImageMagick/ImageMagick/issues/870

Hi,

the following vulnerability was published for imagemagick.

CVE-2017-17682[0]:
| In ImageMagick 7.0.7-12 Q16, a large loop vulnerability was found in
| the function ExtractPostscript in coders/wpg.c, which allows attackers
| to cause a denial of service (CPU exhaustion) via a crafted wpg image
| file that triggers a ReadWPGImage call.

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-2017-17682
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17682
[1] https://github.com/ImageMagick/ImageMagick/issues/870

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore