Updated mupdf packages has been released for both Debian GNU/Linux 8 and 9

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Debian Security Advisory DSA-4152-1 security@debian.org
https://www.debian.org/security/ Luciano Bello
March 27, 2018 https://www.debian.org/security/faq
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Package : mupdf
CVE ID : CVE-2018-6544 CVE-2018-1000051
Debian Bug : 891245

Two vulnerabilities were discovered in MuPDF, a PDF, XPS, and e-book
viewer, which may result in denial of service or remote code execution.
An attacker can craft a PDF document which, when opened in the victim
host, might consume vast amounts of memory, crash the program, or, in
some cases, execute code in the context in which the application is
running.

For the oldstable distribution (jessie), these problems have been fixed
in version 1.5-1+deb8u4.

For the stable distribution (stretch), these problems have been fixed in
version 1.9a+ds1-4+deb9u3.

We recommend that you upgrade your mupdf packages.

For the detailed security status of mupdf please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/mupdf

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

  Mupdf Security Update for Debian 8 and 9