Bug 1379310 (CVE-2016-7052)

Summary:	CVE-2016-7052 openssl: Missing CRL sanity check
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bbaranow, bmaxwell, cdewolf, csutherl, dandread, darran.lofthouse, dosoudil, erik-fedora, fnasser, gzaronik, huwang, jaeshin, jawilson, jclere, ktietz, lgao, marcandre.lureau, mbabacek, myarboro, pgier, psakar, pslavice, redhat-bugzilla, rjones, rnetuka, rsvoboda, sardella, tmraz, twalsh, vtunka, weli
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	openssl 1.0.2j	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-09-26 10:52:28 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:
Bug Blocks:	1367347

Description Tomas Hoger 2016-09-26 10:47:57 UTC

Quoting form the OpenSSL upstream advisory:


Missing CRL sanity check (CVE-2016-7052)
========================================

Severity: Moderate

This issue only affects OpenSSL 1.0.2i, released on 22nd September 2016.

A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0
but was omitted from OpenSSL 1.0.2i. As a result any attempt to use
CRLs in OpenSSL 1.0.2i will crash with a null pointer exception.

OpenSSL 1.0.2i users should upgrade to 1.0.2j

The issue was reported to OpenSSL on 22nd September 2016 by Bruce Stephens and
Thomas Jakobi. The fix was developed by Matt Caswell of the OpenSSL development
team.


External References:

https://www.openssl.org/news/secadv/20160926.txt

Comment 1 Tomas Hoger 2016-09-26 10:52:28 UTC

Upstream commit:

https://git.openssl.org/?p=openssl.git;a=commitdiff;h=6e629b5be45face20b4ca71c4fcbfed78b864a2e

No Red Hat product was affected by this issue, as there's no product includes OpenSSL version 1.0.2i.

Fedora openssl packages are being updated to 1.0.2i in response to upstream security advisory released on Sep22, but those updates have not yet been pushed to stable.  Fedora update requests will be updated to include packages with this issue addressed before updates are pushed to stable.