Bug 1834326 (CVE-2020-10967)

Summary:	CVE-2020-10967 dovecot: sending mail with empty quoted localpart leads to DoS
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	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 2.3.10.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-11-04 02:25:28 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:	1836933, 1840356
Bug Blocks:	1834329

Description Dhananjay Arunesh 2020-05-11 14:12:56 UTC

A vulnerability was found in dovecot 2.3.0 before 2.3.10 where, by sending mail with empty quoted localpart causes submission or lmtp component to crash.

Comment 1 Dhananjay Arunesh 2020-05-11 14:22:12 UTC

Acknowledgments:

Name: mailbox.org

Comment 2 Marian Rehak 2020-05-18 14:08:00 UTC

Created dovecot tracking bugs for this issue:

Affects: fedora-all [bug 1836933]

Comment 5 Stefan Cornelius 2020-05-28 14:23:29 UTC

External References:

https://dovecot.org/pipermail/dovecot-news/2020-May/000438.html

Comment 6 Product Security DevOps Team 2020-11-04 02:25:28 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-10967

Comment 7 errata-xmlrpc 2020-11-04 03:41:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4763 https://access.redhat.com/errata/RHSA-2020:4763