Ubuntu 20.10: 4885-1 Critical: Pygments Denial Of Service Threat

ubuntu

March 22, 2021

pygments could be made to hang if it opened a specially crafted file.

Summary

pygments could be made to hang if it opened a specially crafted file.

Software Description:

- pygments: Generic syntax highlighter

Details:

It was discovered that Pygments incorrectly handled parsing SML files. If a

user or automated system were tricked into parsing a specially crafted SML

file, a remote attacker could cause Pygments to hang, resulting in a denial

of service.

Topics Covered

security advisory denial of service critical issue Ubuntu Pygments

Update Instructions

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

Ubuntu 20.10:
  python3-pygments                2.3.1+dfsg-4ubuntu0.1

Ubuntu 20.04 LTS:
  python-pygments                 2.3.1+dfsg-1ubuntu2.1
  python3-pygments                2.3.1+dfsg-1ubuntu2.1

Ubuntu 18.04 LTS:
  python-pygments                 2.2.0+dfsg-1ubuntu0.1
  python3-pygments                2.2.0+dfsg-1ubuntu0.1

Ubuntu 16.04 LTS:
  python-pygments                 2.1+dfsg-1ubuntu0.1
  python3-pygments                2.1+dfsg-1ubuntu0.1

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