Bug 1800502 (CVE-2020-7957)

Summary: CVE-2020-7957 dovecot: specially crafted email can cause mailbox to have permanently unaccessible mail
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: anon.amish, bennie.joubert, janfrode, mailinglists, mhlavink, security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: dovecot 2.3.9.3 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-02-17 05:16:48 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:    
Bug Blocks: 1800498    

Description Marian Rehak 2020-02-07 09:42:40 UTC
Sending specially crafted email can cause mailbox to have permanently unaccessible mail, or the mail can be stuck in delivery.

Comment 1 Huzaifa S. Sidhpurwala 2020-02-17 05:14:32 UTC
External References:

https://dovecot.org/pipermail/dovecot-news/2020-February/000430.html

Comment 2 Huzaifa S. Sidhpurwala 2020-02-17 05:16:48 UTC
This issue is already addressed in Fedora via the following updates:

Fedora-30-testing: http://koji.fedoraproject.org/packages/dovecot/2.3.9.3/1.fc30
Fedora-31-testing: http://koji.fedoraproject.org/packages/dovecot/2.3.9.3/1.fc31

Comment 3 Huzaifa S. Sidhpurwala 2020-02-17 05:32:44 UTC
Upstream commit: https://github.com/dovecot/core/commit/3a55f35c208b5fd3d52c0a6272bd5b8717a2ae54