Bug 1463642 – CVE-2017-7508 CVE-2017-7520 CVE-2017-7521 CVE-2017-7522 openvpn: Multiple security issues fixed in OpenVPN 2.4.3 and 2.3.17

Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.

Bug 1463642 - (CVE-2017-7508, CVE-2017-7520, CVE-2017-7521, CVE-2017-7522) CVE-2017-7508 CVE-2017-7520 CVE-2017-7521 CVE-2017-7522 openvpn: Multiple security issues fixed in OpenVPN 2.4.3 and 2.3.17

Summary:	CVE-2017-7508 CVE-2017-7520 CVE-2017-7521 CVE-2017-7522 openvpn: Multiple sec...

Status:	CLOSED NOTABUG

Aliases:	CVE-2017-7508, CVE-2017-7520, CVE-2017-7521, CVE-2017-7522

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

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

URL:
Whiteboard:	impact=important,public=20170621,repo...
Keywords:	Security

Depends On:	1463643 1463644
Blocks:	1463872
	Show dependency tree / graph

Reported:	2017-06-21 08:17 EDT by Adam Mariš
Modified:	2017-08-24 05:22 EDT (History)
CC List:	6 users (show)

See Also:
Fixed In Version:	openvpn 2.4.3, openvpn 2.3.17
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-08-24 05:22:52 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Adam Mariš 2017-06-21 08:17:09 EDT

Multiple security issues were fixed in OpenVPN 2.4.3 and 2.3.17, specifically:

CVE-2017-7508: Remotely-triggerable ASSERT() on malformed IPv6 packet

https://github.com/OpenVPN/openvpn/commit/c3f47077a7

CVE-2017-7520: Pre-authentication remote crash/information disclosure for clients

https://github.com/OpenVPN/openvpn/commit/7718c8984f

CVE-2017-7521: Issues in extract_x509_extension() leading to server memory drain/crash/double-free

https://github.com/OpenVPN/openvpn/commit/cb4e35ece4
https://github.com/OpenVPN/openvpn/commit/2d032c7fcd

CVE-2017-7522: Post-authentication remote DoS when using the --x509-track option

https://github.com/OpenVPN/openvpn/commit/426392940c

External References:

https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243
https://guidovranken.wordpress.com/2017/06/21/the-openvpn-post-audit-bug-bonanza/

Comment 1 Adam Mariš 2017-06-21 08:17:28 EDT

Acknowledgments:

Name: the OpenVPN project
Upstream: Guido Vranken

Comment 2 Adam Mariš 2017-06-21 08:17:50 EDT

Created openvpn tracking bugs for this issue:

Affects: epel-all [bug 1463644]
Affects: fedora-all [bug 1463643]

Comment 9 Vincent Danen 2017-06-23 13:03:51 EDT

Statement:

This issue does not affect Red Hat Enterprise Linux 5, 6 and 7 as OpenVPN is not included in any of Red Hat's supported products.

Note You need to log in before you can comment on or make changes to this bug.