Bug 1834317 (CVE-2020-10957)

Summary: CVE-2020-10957 dovecot: malformed NOOP commands leads to DoS
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
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 2.3.10.1 Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Dovecot, where it did not properly handle certain malformed NOOP commands. This flaw allows a malicious attacker to cause the submission, submission-login, or lmtp services to crash by sending specially crafted commands.
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-07-14 01:27:37 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1836934, 1840353, 1840354    
Bug Blocks: 1834329    

Description Dhananjay Arunesh 2020-05-11 13:59:56 UTC
A vulnerability was found in dovecot 2.3.0 before 2.3.10 where, by sending malformed NOOP command causes crash in submission, submission-login or lmtp service.

Comment 1 Dhananjay Arunesh 2020-05-11 14:19:33 UTC
Acknowledgments:

Name: Philippe Antoine (Catena Cyber)

Comment 2 Marian Rehak 2020-05-18 14:08:00 UTC
Created dovecot tracking bugs for this issue:

Affects: fedora-all [bug 1836934]

Comment 5 Stefan Cornelius 2020-05-28 14:28:03 UTC
External References:

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

Comment 6 errata-xmlrpc 2020-07-13 20:27:19 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:2901 https://access.redhat.com/errata/RHSA-2020:2901

Comment 7 Product Security DevOps Team 2020-07-14 01:27:37 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-2020-10957

Comment 8 Product Security DevOps Team 2020-07-14 07:27:37 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-2020-10957