Bug 1988550 (CVE-2021-37746)

Summary:	CVE-2021-37746 claws-mail: insufficient link checks before accepting a click in textview_uri_security_check() in textview.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	andreas.bierfert, bugs.michael, christoph.wickert, dan, i
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-07-31 07:06:57 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1988553, 1988551, 1988552
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-07-30 19:31:41 UTC

textview_uri_security_check in textview.c in Claws Mail before 3.18.0, and Sylpheed through 3.7.0, does not have sufficient link checks before accepting a click.

Reference and upstream patch:
https://git.claws-mail.org/?p=claws.git;a=commit;h=ac286a71ed78429e16c612161251b9ea90ccd431

Comment 1 Guilherme de Almeida Suckevicz 2021-07-30 19:32:29 UTC

Created claws-mail tracking bugs for this issue:

Affects: fedora-all [bug 1988551]


Created sylpheed tracking bugs for this issue:

Affects: epel-7 [bug 1988553]
Affects: fedora-all [bug 1988552]

Comment 2 Product Security DevOps Team 2021-07-31 07:06:57 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.