Bug 2026455

Summary:	kmail: infinite loop if the TLS certificate marked as bad
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:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	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:	2021-11-24 17:39:48 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:	2026456
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-11-24 17:12:23 UTC

When the IMAP TLS certificate is bad, e.g. self-signed, kmail shows a warning with three buttons: "Details", "Continue" and "Cancel". When the user clicks on "Cancel", kmail repeats the login process and shows the warning again immediately. This process continues in a loop, which can not be canceled by the user when clicking on "Cancel" (the only secure option). The only way to "escape" from this loop is to click on "Continue.", which might reveal the username and password.

Reference:
https://kde.org/info/security/advisory-20211118-2.txt

Comment 1 Guilherme de Almeida Suckevicz 2021-11-24 17:12:36 UTC

Created kmail tracking bugs for this issue:

Affects: fedora-all [bug 2026456]

Comment 2 Product Security DevOps Team 2021-11-24 17:39:46 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.