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USN-5198-1: HTMLDOC vulnerability

16 December 2021

HTMLDOC could be made to crash if it received specially crafted input.



  • htmldoc - HTML processor that generates indexed HTML, PS, and PDF


It was discovered that HTMLDOC improperly handled malformed URIs from an input
html file. An attacker could use this to cause a denial of service.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 21.04
Ubuntu 20.04

In general, a standard system update will make all the necessary changes.