[Secure-testing-team] Bug#885120: mupdf: CVE-2017-17866

[Salvatore Bonaccorso]

Source: mupdf
Version: 1.11+ds1-2
Severity: important
Tags: patch security upstream
Forwarded: https://bugs.ghostscript.com/show_bug.cgi?id=698699

Hi,

the following vulnerability was published for mupdf.

CVE-2017-17866[0]:
| pdf/pdf-write.c in Artifex MuPDF before 1.12.0 mishandles certain
| length changes when a repair operation occurs during a clean operation,
| which allows remote attackers to cause a denial of service (buffer
| overflow and application crash) or possibly have unspecified other
| impact via a crafted PDF document.

The upstream report at [1] does not seem publicly accessible, but the
commit [2] references it to fix the issue.

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-2017-17866
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17866
[1] https://bugs.ghostscript.com/show_bug.cgi?id=698699 (not public)
[2] http://git.ghostscript.com/?p=mupdf.git;a=commitdiff;h=520cc26d18c9ee245b56e9e91f9d4fcae02be5f0

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore