CVE-2020-5238: falha de média gravidade em github cmark-gfm
Denial of service in table parsing in cmark-gfm
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.5epss 1.6%
The table extension in GitHub Flavored Markdown before version 0.29.0.gfm.1 takes O(n * n) time to parse certain inputs. An attacker could craft a markdown table which would take an unreasonably long time to process, causing a denial of service. This issue does not affect the upstream cmark project. The issue has been fixed in version 0.29.0.gfm.1.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
github · cmark-gfmCVEs relacionadas — github cmark-gfm
No mesmo produto, das mais perigosas para as menos.
CVE-2022-24724HIGHInteger overflow in table parsing extension leads to heap memory corruptionEPSS 4.5%CVE-2022-39209HIGHUncontrolled Resource Consumption in cmark-gfmEPSS 2.3%CVE-2023-22486LOWcmark-gfm Quadratic complexity bug in handle_close_bracket may lead to a denial of serviceEPSS 1.1%CVE-2023-22483LOWcmark-gfm Quadratic complexity bugs may lead to a denial of serviceEPSS 1.1%CVE-2023-24824MEDIUMQuadratic complexity may lead to a denial of service in cmark-gfmEPSS 1.0%CVE-2023-26485MEDIUMQuadratic complexity may lead to a denial of service in cmark-gfmEPSS 1.0%
Referências
https://github.com/github/cmark-gfm/commit/85d895289c5ab67f988ca659493a64abb5fec7b4https://github.com/github/cmark-gfm/security/advisories/GHSA-7gc6-9qr5-hc85https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TCDHBTUFIOYRIS5HAS6PZNBNMB7IOAX3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WMQFOQQCWOAMQ4I2XIVCVOXXIJ75HDCW/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZGJH2A4VAV54X6NSCNNGSEIGIIY5N2VR/