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FreeBSD: VID-732282A5-5A10-11EE-BCA0-001999F8D30B (CVE-2023-42821): Mailpit affected by vulnerability in included go markdown module

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FreeBSD: VID-732282A5-5A10-11EE-BCA0-001999F8D30B (CVE-2023-42821): Mailpit affected by vulnerability in included go markdown module

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
09/22/2023
Created
09/25/2023
Added
09/23/2023
Modified
10/02/2023

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.

Solution(s)

  • freebsd-upgrade-package-mailpit

References

  • CVE-2023-42821

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