Bug 1995180 (CVE-2021-38373)

Summary:	CVE-2021-38373 kmail: STARTTLS is ignored when "Server requires authentication" not checked in UI
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jgrulich, kde-sig, rdieter
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:	2021-08-31 13:41:45 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:	1995181, 1999643
Bug Blocks:	1995182

Description Pedro Sampaio 2021-08-18 15:14:21 UTC

The STARTTLS option of SMTP is ignored, when "Server requires authentication" is not checked. In this case kmail will send any mail in cleartext.

References:

https://bugs.kde.org/show_bug.cgi?id=423423

Comment 1 Pedro Sampaio 2021-08-18 15:14:34 UTC

Created kmail tracking bugs for this issue:

Affects: fedora-all [bug 1995181]

Comment 2 devthomp 2021-08-24 01:27:42 UTC

I'll do some more digging but according to the manifest kdepim has been removed from RHEL (since 2019-09-10).

Comment 4 devthomp 2021-08-31 13:41:45 UTC

kmail is susceptible to a confidentially leak if "Server requires authentication" not checked in UI.
The issue in a nutshell is this could lead to information not being encrypted that otherwise would be.

analysis is complete, trackers have been filed.
Closing.