Bug 1797084 (CVE-2020-2101)

Summary:	CVE-2020-2101 jenkins: Non-constant time comparison of inbound TCP agent connection secret
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abenaiss, adam.kaplan, aos-bugs, bmontgom, eparis, extras-orphan, java-sig-commits, jburrell, jokerman, mizdebsk, msrb, nstielau, pbhattac, sponnaga, wzheng
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	jenkins 2.219, jenkins LTS 2.204.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-28 01:16:21 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:	1797085, 1797143, 1797144, 1797146, 1813070, 1873172
Bug Blocks:	1797089

Description Pedro Sampaio 2020-01-31 21:05:52 UTC

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret.

References:

https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1659
http://www.openwall.com/lists/oss-security/2020/01/29/1

Comment 1 Pedro Sampaio 2020-01-31 21:06:15 UTC

Created jenkins tracking bugs for this issue:

Affects: fedora-all [bug 1797085]

Comment 4 Sam Fowler 2020-02-01 02:01:41 UTC

"Any security advisory related updates to Jenkins core or the plugins we include in the OpenShift Jenkins master image will only occur in the v3.11 and v4.x branches of this repository."

https://github.com/openshift/jenkins/blob/master/README.md#jenkins-security-advisories-the-master-image-from-this-repository-and-the-oc-binary

Comment 5 Akram Ben Aissi 2020-03-03 09:06:29 UTC

This bug has been fixed by https://errata.devel.redhat.com/advisory/50532 that brought Jenkins 2.204.2