Bug 1411835 – CVE-2017-5334 gnutls: Double-free while decoding crafted X.509 certificates

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Bug 1411835 - (CVE-2017-5334) CVE-2017-5334 gnutls: Double-free while decoding crafted X.509 certificates

Summary:	CVE-2017-5334 gnutls: Double-free while decoding crafted X.509 certificates

Status:	CLOSED ERRATA

Aliases:	CVE-2017-5334

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20170110,repor...
Keywords:	Security

Depends On:	1411838 1411846 1413836
Blocks:	1411837 1415638
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Reported:	2017-01-10 10:26 EST by Andrej Nemec
Modified:	2018-09-13 03:27 EDT (History)
CC List:	6 users (show)

See Also:
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 02:46:26 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:2292	normal	SHIPPED_LIVE	Moderate: gnutls security, bug fix, and enhancement update	2017-08-01 08:39:15 EDT

Groups: None (edit)

Description Andrej Nemec 2017-01-10 10:26:02 EST

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 10:31:17 EST

Created gnutls tracking bugs for this issue:

Affects: fedora-all [bug 1411838]

Comment 2 Nikos Mavrogiannopoulos 2017-01-10 10:39:44 EST

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

Comment 3 Andrej Nemec 2017-01-10 10:44:12 EST

Created gnutls30 tracking bugs for this issue:

Affects: epel-6 [bug 1411846]

Comment 4 Andrej Nemec 2017-01-11 08:37:15 EST

CVE assignment:

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

Comment 6 errata-xmlrpc 2017-08-01 04:49:46 EDT

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

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