[Secure-testing-team] Bug#867746: graphicsmagick: CVE-2017-11102

[Salvatore Bonaccorso]

Source: graphicsmagick
Version: 1.3.26-1
Severity: important
Tags: patch upstream security

Hi,

the following vulnerability was published for graphicsmagick.

CVE-2017-11102[0]:
| The ReadOneJNGImage function in coders/png.c in GraphicsMagick 1.3.26
| allows remote attackers to cause a denial of service (application
| crash) during JNG reading via a zero-length color_image data
| structrure.

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-2017-11102
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11102
[1] http://hg.code.sf.net/p/graphicsmagick/code/rev/d445af60a8d5
[2] http://hg.code.sf.net/p/graphicsmagick/code/rev/dea93a690fc1

Please adjust the affected versions in the BTS as needed. Only check
for unstable has been done, and unless I was completely wrong on
checking the JNG support should be enabled.

Regards,
Salvatore