Ubuntu: (Multiple Advisories) (CVE-2021-27291): Pygments vulnerability
5
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
03/17/2021
04/01/2021
03/31/2021
08/15/2023
Description
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Solution(s)
- ubuntu-upgrade-python-pygments
- ubuntu-upgrade-python3-pygments
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