CVE-2023-42821
CVSS V2 None
CVSS V3 None
Description
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.
Overview
- CVE ID
- CVE-2023-42821
- Assigner
- GitHub_M
- Vulnerability Status
- PUBLISHED
- Published Version
- 2023-09-22T16:55:33.355Z
- Last Modified Date
- 2023-09-22T16:55:33.355Z
Weakness Enumerations
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/gomarkdown/markdown/security/advisories/GHSA-m9xq-6h2j-65r2 | x_refsource_CONFIRM |
| https://github.com/gomarkdown/markdown/commit/14b16010c2ee7ff33a940a541d993bd043a88940 | x_refsource_MISC |
| https://github.com/gomarkdown/markdown/blob/7478c230c7cd3e7328803d89abe591d0b61c41e4/parser/citation.go#L69 | x_refsource_MISC |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-42821 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42821 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2024-06-25 13:52:03 | Added to TrackCVE |