Bug 1454621 (CVE-2017-7507)

Summary:	CVE-2017-7507 gnutls: Crash upon receiving well-formed status_request extension
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bmcclain, cfergeau, dblechte, dominik.mierzejewski, eedri, erik-fedora, hkario, jv+fedora, lsurette, mgoldboi, michal.skrivanek, mike, nmavrogi, rh-spice-bugs, rjones, sardella, security-response-team, slawomir, srevivo, szidek, tmraz, ykaul
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A null pointer dereference flaw was found in the way GnuTLS processed ClientHello messages with status_request extension. A remote attacker could use this flaw to cause an application compiled with GnuTLS to crash.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:13:18 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:	1454411, 1455828, 1459795, 1459796, 1459797, 1459798
Bug Blocks:	1415638, 1454623

Description Andrej Nemec 2017-05-23 08:09:13 UTC

It was found that GnuTLS would crash when receiving a client hello message with status_request extension that has a non-empty responder_id_list.

Comment 1 Andrej Nemec 2017-05-23 08:09:23 UTC

Acknowledgments:

Name: Hubert Kario (Red Hat QE BaseOS Security team)

Comment 6 Andrej Nemec 2017-06-08 08:18:27 UTC

Created gnutls tracking bugs for this issue:

Affects: fedora-all [bug 1459795]


Created gnutls30 tracking bugs for this issue:

Affects: epel-6 [bug 1459797]


Created mingw-gnutls tracking bugs for this issue:

Affects: epel-7 [bug 1459796]
Affects: fedora-all [bug 1459798]

Comment 7 Andrej Nemec 2017-06-08 08:19:30 UTC

External References:

https://www.gnutls.org/security.html#GNUTLS-SA-2017-4

Comment 8 errata-xmlrpc 2017-08-01 08:50:28 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:2292 https://access.redhat.com/errata/RHSA-2017:2292