Your submission was sent successfully! Close

USN-4562-1: kramdown vulnerability

30 September 2020

kramdown could be made to crash, run programs, or leak sensitive information if it opened a specially crafted file.



  • ruby-kramdown - Fast, pure-Ruby Markdown-superset converter - ruby library


It was discovered that kramdown insecurely handled certain crafted input.
An attacker could use this vulnerability to read restricted files or
execute arbitrary code.

Update instructions

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

Ubuntu 20.04

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


Related notices