PYSEC-2021-141
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2021-27291
- Alias
- GHSA-pq64-v7f5-gqh8
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.
Paquets affectés
| Paquet | Versions |
|---|---|
| PyPI · pygments | introduced 0, fixed 2e7e8c4a7b318f4032493773732754e418279a14 ; introduced 1.1, fixed 2.7.4 |
Références
- https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce WEB
- https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14 FIX
- https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html WEB
- https://www.debian.org/security/2021/dsa-4878 ADVISORY
- https://www.debian.org/security/2021/dsa-4889 ADVISORY
- https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ/ WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55/ WEB
- https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html WEB
- https://github.com/advisories/GHSA-pq64-v7f5-gqh8 ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |