CVE-2023-42821

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Source

https://nvd.nist.gov/vuln/detail/CVE-2023-42821

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-42821.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2023-42821

Aliases

Related

UBUNTU-CVE-2023-42821

Published

2023-09-22T17:15:14Z

Modified

2024-09-18T03:25:25.573015Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

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.

References

Affected packages

Debian:12 / golang-github-gomarkdown-markdown

Package

Name: golang-github-gomarkdown-markdown
Purl: pkg:deb/debian/golang-github-gomarkdown-markdown?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.0~git20220731.dcdaee8-2

0.0~git20231115.a660076-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / golang-github-gomarkdown-markdown

Package

Name: golang-github-gomarkdown-markdown
Purl: pkg:deb/debian/golang-github-gomarkdown-markdown?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.0~git20231115.a660076-1

Affected versions

0.*

0.0~git20220731.dcdaee8-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Git / github.com/gomarkdown/markdown

Affected ranges

Type: GIT
Repo: https://github.com/gomarkdown/markdown
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

14b16010c2ee7ff33a940a541d993bd043a88940