777252 – (CVE-2021-28834) <dev-ruby/kramdown-2.3.1: incorrect class instantiation restriction (CVE-2021-28834)

Bug 777252 (CVE-2021-28834) - <dev-ruby/kramdown-2.3.1: incorrect class instantiation restriction (CVE-2021-28834)

Summary: <dev-ruby/kramdown-2.3.1: incorrect class instantiation restriction (CVE-2021...

Status:	RESOLVED FIXED

Alias:	CVE-2021-28834

Product:	Gentoo Security
Classification:	Unclassified
Component:	Vulnerabilities (show other bugs)
Hardware:	All Linux

Importance:	Normal trivial (vote)
Assignee:	Gentoo Security

URL:
Whiteboard:	~4 [noglsa]
Keywords:

Depends on:
Blocks:

Reported:	2021-03-19 12:54 UTC by John Helmert III
Modified:	2021-03-20 14:27 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

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Description John Helmert III archtester

2021-03-19 12:54:35 UTC

CVE-2021-28834:

Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.

Patch: https://github.com/gettalong/kramdown/pull/708/commits/d6a1cbcb2caa2f8a70927f176070d126b2422760

Comment 1 Hans de Graaff gentoo-dev

2021-03-20 07:32:56 UTC

kramdown-2.3.1 has been added.

Comment 2 Hans de Graaff gentoo-dev

2021-03-20 07:33:36 UTC

Cleanup done.

Comment 3 John Helmert III archtester

2021-03-20 14:27:36 UTC

All done, thanks!