A htmldoc security update has been released for Debian GNU/Linux 8 Extended LTS to address several issues.

ELA-570-1 htmldoc security update

Package htmldoc
Version 1.8.27-8+deb8u3
Related CVEs CVE-2021-40985 CVE-2021-43579 CVE-2022-0534

Several issues have been found in htmldoc, an HTML processor that generates indexed HTML, PS, and PDF.

CVE-2022-0534

A crafted GIF file could lead to a stack out-of-bounds read,
which could result in a crash (segmentation fault).
CVE-2021-43579

Converting an HTML document, which links to a crafted BMP file,
could lead to a stack-based buffer overflow, which could result
in remote code execution.
CVE-2021-40985

A crafted BMP image could lead to a buffer overflow, which could
cause a denial of service.
For Debian 8 jessie, these problems have been fixed in version 1.8.27-8+deb8u3.

We recommend that you upgrade your htmldoc packages.

Further information about Extended LTS security advisories can be found at: https://deb.freexian.com/extended-lts/

  ELA-570-1 htmldoc security update