========================================================================== Ubuntu Security Notice USN-4885-1 March 22, 2021 pygments vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS 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. 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. References: https://ubuntu.com/security/notices/USN-4885-1 CVE-2021-20270 Package Information: https://launchpad.net/ubuntu/+source/pygments/2.3.1+dfsg-4ubuntu0.1 https://launchpad.net/ubuntu/+source/pygments/2.3.1+dfsg-1ubuntu2.1 https://launchpad.net/ubuntu/+source/pygments/2.2.0+dfsg-1ubuntu0.1 https://launchpad.net/ubuntu/+source/pygments/2.1+dfsg-1ubuntu0.1