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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.

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Releases

Packages

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

Details

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

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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.

References

Related notices

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Further reading