Bug 1311949 (CVE-2016-0791)

Summary: CVE-2016-0791 jenkins: Non-constant time comparison of CSRF crumbs (SECURITY-245)
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: abhgupta, bleanhar, ccoleman, dmcphers, java-sig-commits, jialiu, jkeck, joelsmith, jokerman, kseifried, lmeyer, mizdebsk, mmccomas, msrb, tiwillia
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Jenkins 1.650, Jenkins 1.642.2 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-08-25 23:28:10 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: 1311951, 1311952, 1320309, 1324676, 1324677    
Bug Blocks: 1320308, 1324911    

Description Andrej Nemec 2016-02-25 11:31:18 UTC 
The following flaw was found in Jenkins:

The verification of user-provided CSRF crumbs with the expected value did not use a constant-time comparison algorithm, potentially allowing attackers to use statistical methods to determine valid CSRF crumbs using brute-force methods.

External References:

https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-02-24
Comment 3 errata-xmlrpc 2016-05-03 15:32:17 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Enterprise 3.1

Via RHSA-2016:0711 https://access.redhat.com/errata/RHSA-2016:0711
Comment 4 errata-xmlrpc 2016-08-24 19:44:57 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Enterprise 2.2

Via RHSA-2016:1773 https://rhn.redhat.com/errata/RHSA-2016-1773.html