Bug 1995168

Summary:	sylpheed: STARTTLS can be stripped and Sylpheed will proceed in plaintext leaking the user credentials
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	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:	2021-08-18 21:35:14 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:	1995169, 1995170
Bug Blocks:

Description Pedro Sampaio 2021-08-18 14:55:58 UTC

Configure an IMAP server such that Sylpheed can connect via STARTTLS. When an attacker strips the STARTTLS capability from the server greeting and the response to the capability command, Sylpheed will not issue the STARTTLS command anymore and proceed with the login in plaintext.

References:

https://sylpheed.sraoss.jp/redmine/issues/322

Comment 1 Pedro Sampaio 2021-08-18 14:56:19 UTC

Created sylpheed tracking bugs for this issue:

Affects: epel-7 [bug 1995170]
Affects: fedora-all [bug 1995169]

Comment 2 Product Security DevOps Team 2021-08-18 21:35:14 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.