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Debian LTS Advisory DLA-2928-1                [email protected]
https://www.debian.org/lts/security/                    Thorsten Alteholz
February 26, 2022                             https://wiki.debian.org/LTS
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Package        : htmldoc
Version        : 1.8.27-8+deb9u2
CVE ID         : 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.


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


      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.


      A crafted BMP image could lead to a buffer overflow, which could
      cause a denial of service.

For Debian 9 stretch, these problems have been fixed in version

We recommend that you upgrade your htmldoc packages.

For the detailed security status of htmldoc please refer to
its security tracker page at:

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