Bug 1467606 (CVE-2017-10789)

Summary:	CVE-2017-10789 perl-DBD-MySQL: Possible MITM attack when mysql_ssl=1
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	hhorak, jorton, jplesnik, perl-devel, perl-maint-list, ppisar, psabata, sardella
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2017-08-31 08:39:05 UTC	Type:	---
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Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1467608
Bug Blocks:	1467607

Description Adam Mariš 2017-07-04 10:35:37 UTC

The DBD::mysql module through 4.043 for Perl uses the mysql_ssl=1 setting to mean that SSL is optional (even though this setting's documentation has a "your communication with the server will be encrypted" statement), which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, a related issue to CVE-2015-3152.

Upstream bug:

https://github.com/perl5-dbi/DBD-mysql/issues/140

Comment 1 Adam Mariš 2017-07-04 10:39:27 UTC

Created perl-DBD-MySQL tracking bugs for this issue:

Affects: fedora-all [bug 1467608]

Comment 3 Stefan Cornelius 2017-08-31 08:39:14 UTC

Statement:

Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.