Bug 1411835 (CVE-2017-5334)

Summary:	CVE-2017-5334 gnutls: Double-free while decoding crafted X.509 certificates
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:	jv+fedora, nmavrogi, sardella, slawomir, tmraz, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	gnutls 3.3.26, gnutls 3.5.8	Doc Type:	If docs needed, set a value
Doc Text:	A double-free flaw was found in the way GnuTLS parsed certain X.509 certificates with Proxy Certificate Information extension. An attacker could create a specially-crafted certificate which, when processed by an application compiled against GnuTLS, could cause that application to crash.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-09-13 06:46:26 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:	1411838, 1411846, 1413836
Bug Blocks:	1411837, 1415638

Description Andrej Nemec 2017-01-10 15:26:02 UTC

It was found that decoding a specially crafted X.509 certificate with Proxy Certificate Information extension present could lead to a double free. This issue was fixed in GnuTLS 3.3.26 and 3.5.8.

External References:

https://gnutls.org/security.html#GNUTLS-SA-2017-1

Upstream patch:

https://gitlab.com/gnutls/gnutls/commit/c5aaa488a3d6df712dc8dff23a049133cab5ec1b

Comment 1 Andrej Nemec 2017-01-10 15:31:17 UTC

Created gnutls tracking bugs for this issue:

Affects: fedora-all [bug 1411838]

Comment 2 Nikos Mavrogiannopoulos 2017-01-10 15:39:44 UTC

This was addressed in F25 with https://bodhi.fedoraproject.org/updates/FEDORA-2017-88f1664dd4

Comment 3 Andrej Nemec 2017-01-10 15:44:12 UTC

Created gnutls30 tracking bugs for this issue:

Affects: epel-6 [bug 1411846]

Comment 4 Andrej Nemec 2017-01-11 13:37:15 UTC

CVE assignment:

http://seclists.org/oss-sec/2017/q1/57

Comment 6 errata-xmlrpc 2017-08-01 08:49:46 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