Bug 1880454 (CVE-2020-2252)

Summary: CVE-2020-2252 jenkins-2-plugins/mailer: Missing hostname validation in Mailer Plugin could result in MITM
Product: [Other] Security Response Reporter: Michael Kaplan <mkaplan>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: abenaiss, aos-bugs, bmontgom, eparis, jburrell, jokerman, nstielau, pbhattac, sponnaga, vbobade
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: mailer 1.32.1 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-10-27 20:21:41 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: 1881474, 1881475    
Bug Blocks: 1880461    

Description Michael Kaplan 2020-09-18 15:26:30 UTC 
Mailer Plugin 1.32 and earlier does not perform hostname validation when connecting to the configured SMTP server. This lack of validation could be abused using a man-in-the-middle attack to intercept these connections.
Comment 1 Michael Kaplan 2020-09-18 15:26:34 UTC 
External References:

https://www.openwall.com/lists/oss-security/2020/09/16/3
https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1813
Comment 2 Przemyslaw Roguski 2020-09-22 13:34:18 UTC 
In the jenkins-2-plugins package there is shipped the Mailer Plugin in version:
mailer-1.30 in OpenShift 4.5
mailer-1.32 in OpenShift 3.11
Comment 5 errata-xmlrpc 2020-10-27 14:54:04 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.6

Via RHSA-2020:4297 https://access.redhat.com/errata/RHSA-2020:4297
Comment 6 Product Security DevOps Team 2020-10-27 20:21:41 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-2020-2252
Comment 7 errata-xmlrpc 2020-11-17 04:38:55 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.11

Via RHSA-2020:5102 https://access.redhat.com/errata/RHSA-2020:5102