MGASA-2021-0245 - Updated python-pygments packages fix a security vulnerability Publication date: 13 Jun 2021 URL: https://advisories.mageia.org/MGASA-2021-0245.html Type: security Affected Mageia releases: 7 CVE: CVE-2021-27291 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 (CVE-2021-27291). References: - https://bugs.mageia.org/show_bug.cgi?id=28982 - https://lists.fedoraproject.org/archives/list/[email protected]/thread/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55/ - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27291 SRPMS: - 7/core/python-pygments-2.3.1-1.2.mga7
Mageia 2021-0245: python-pygments security update
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions
Summary
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 (CVE-2021-27291).
References
- https://bugs.mageia.org/show_bug.cgi?id=28982
- https://lists.fedoraproject.org/archives/list/[email protected]/thread/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27291
Resolution
MGASA-2021-0245 - Updated python-pygments packages fix a security vulnerability
SRPMS
- 7/core/python-pygments-2.3.1-1.2.mga7
Severity
Publication date: 13 Jun 2021
URL: https://advisories.mageia.org/MGASA-2021-0245.html
Type: security
CVE: CVE-2021-27291
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