A htmldoc security update has been released for Debian GNU/Linux 9 LTS to address an integer overflow vulnerability.

DLA 3004-1: htmldoc security update

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Debian LTS Advisory DLA-3004-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
May 13, 2022   https://wiki.debian.org/LTS
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Package : htmldoc
Version : 1.8.27-8+deb9u3
CVE ID : CVE-2022-27114

It was discovered that there was an integer overflow vulnerabiliity
in htmldoc, a HTML processor that generates indexed HTML, PS and PDF
files. This was caused by a programming error in image_load_jpeg
function due to a conflation or confusion of
declared/expected/observed image dimensions.

For Debian 9 "Stretch", this problem has been fixed in version
1.8.27-8+deb9u3.

We recommend that you upgrade your htmldoc packages.

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

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