861095 – (CVE-2022-34749) <dev-python/mistune-2.0.3: ReDoS

Bug 861095 (CVE-2022-34749) - <dev-python/mistune-2.0.3: ReDoS

Summary: <dev-python/mistune-2.0.3: ReDoS

Status:	RESOLVED FIXED

Alias:	CVE-2022-34749

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

Importance:	Normal minor (vote)
Assignee:	Gentoo Security

URL:	https://github.com/lepture/mistune/co...
Whiteboard:	B3 [noglsa]
Keywords:

Depends on:	861122
Blocks:
	Show dependency tree

Reported:	2022-07-26 01:59 UTC by John Helmert III
Modified:	2022-07-26 21:19 UTC (History)
CC List:	2 users (show)

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

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Description John Helmert III archtester

2022-07-26 01:59:28 UTC

CVE-2022-34749:

In mistune through 2.0.2, support of inline markup is implemented by using regular expressions that can involve a high amount of backtracking on certain edge cases. This behavior is commonly named catastrophic backtracking.

... or ReDoS. Rather annoying that MITRE had assigned this at least 24
days ago (since it's referenced in the commit), but didn't actually
publish it until today.

Anyway, please stabilize 2.0.3

Comment 1 Michał Górny archtester

2022-07-26 07:23:31 UTC

cleanup done.

Comment 2 John Helmert III archtester

2022-07-26 21:19:48 UTC

Thanks, all done!