[Secure-testing-team] Bug#888464: mupdf: CVE-2018-6187: heap-based buffer overflow in pdf/pdf-write.c:do_pdf_save_document()

[Salvatore Bonaccorso]

Source: mupdf
Version: 1.11+ds1-2
Severity: important
Tags: security upstream
Forwarded: https://bugs.ghostscript.com/show_bug.cgi?id=698908

Hi,

the following vulnerability was published for mupdf.

CVE-2018-6187[0]:
| In Artifex MuPDF 1.12.0, there is a heap-based buffer overflow
| vulnerability in the do_pdf_save_document function in the
| pdf/pdf-write.c file. Remote attackers could leverage the vulnerability
| to cause a denial of service via a crafted pdf file.

Reproducible with an ASAN build 

mutool poster ~/CVE-2018-6187.poc

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-2018-6187
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6187
[1] https://bugs.ghostscript.com/show_bug.cgi?id=698908

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore
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