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USN-4897-2: Pygments vulnerabilities

14 August 2023

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

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Releases

Packages

Details

USN-4897-1 fixed several vulnerabilities in Pygments. This update provides
the corresponding update for Ubuntu 14.04 LTS.

Original advisory details:

Ben Caller discovered that Pygments incorrectly handled parsing certain
files. If a user or automated system were tricked into parsing a specially
crafted file, a remote attacker could cause Pygments to hang or consume
resources, resulting in a denial of service. (CVE-2021-27291)

It was discovered that Pygments incorrectly handled parsing certain
files. An attacker could possibly use this issue to cause a denial of
service. (CVE-2021-20270)

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 14.04

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

Related notices

  • USN-4885-1: python-pygments-doc, pygments, python3-pygments, python-pygments
  • USN-4897-1: python-pygments-doc, pygments, python3-pygments, python-pygments