CVE-2023-42821

CVE-2023-42821 · github.com/gomarkdown/markdown Out-of-bounds Read while parsing citations

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The package `github.com/gomarkdown/markdown` is a Go library for parsing Markdown text and rendering as HTML. Prior to pseudoversion `0.0.0-20230922105210-14b16010c2ee`, which corresponds with commit `14b16010c2ee7ff33a940a541d993bd043a88940`, parsing malformed markdown input with parser that uses parser.Mmark extension could result in out-of-bounds read vulnerability. To exploit the vulnerability, parser needs to have `parser.Mmark` extension set. The panic occurs inside the `citation.go` file on the line 69 when the parser tries to access the element past its length. This can result in a denial of service. Commit `14b16010c2ee7ff33a940a541d993bd043a88940`/pseudoversion `0.0.0-20230922105210-14b16010c2ee` contains a patch for this issue.

CVSS 7.5 · Hoch · EPSS 1,3% · Korrektur verfügbar

Veröffentlicht

2023-09-22T16:55:33.355Z

Aktualisiert

2024-09-24T19:27:42.779Z

Technologie-Stack: system

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