CVE-2023-42821

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Summary

CVECVE-2023-42821
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-09-22 17:15:00 UTC
Updated2023-09-26 14:59:00 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-125

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gomarkdown Markdown - All All All

References

ReferenceSourceLinkTags
fix out-of-bounds read · gomarkdown/markdown@14b1601 · GitHub MISC github.com
Out-of-bounds Read while parsing citations · Advisory · gomarkdown/markdown · GitHub MISC github.com
github.com/gomarkdown/markdown/blob/7478c230c7cd3e7328803d89abe591d0b61c... MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 691305 Free Berkeley Software Distribution (FreeBSD) Security Update for mailpit affected by Vulnerability in included go markdown module (732282a5-5a10-11ee-bca0-001999f8d30b)
  • 995401 GO (Go) Security Update for github.com/gomarkdown/markdown (GHSA-m9xq-6h2j-65r2)
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