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Bug 654028 (CVE-2018-9336) - <net-vpn/openvpn-2.4.6: Denial of service in OpenVPN's Interactive Service (CVE-2018-9336)
Summary: <net-vpn/openvpn-2.4.6: Denial of service in OpenVPN's Interactive Service (...
Status: RESOLVED FIXED
Alias: CVE-2018-9336
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Security
URL:
Whiteboard: B3 [noglsa cve]
Keywords:
Depends on:
Blocks:
 
Reported: 2018-04-24 23:39 UTC by Manuel Rüger (RETIRED)
Modified: 2018-12-01 10:06 UTC (History)
2 users (show)

See Also:
Package list:
net-vpn/openvpn-2.4.6
Runtime testing required: ---
stable-bot: sanity-check+


Attachments

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Description Manuel Rüger (RETIRED) gentoo-dev 2018-04-24 23:39:14 UTC
OpenVPN 2.4.6

David Sommerseth (1):
      management: Warn if TCP port is used without password

Gert Doering (3):
      Correct version in ChangeLog - should be 2.4.5, was mistyped as 2.4.4
      Fix potential double-free() in Interactive Service (CVE-2018-9336)
      preparing release v2.4.6 (ChangeLog, version.m4, Changes.rst)

Gert van Dijk (1):
      manpage: improve description of --status and --status-version

Joost Rijneveld (1):
      Make return code external tls key match docs

Selva Nair (3):
      Delete the IPv6 route to the "connected" network on tun close
      Management: warn about password only when the option is in use
      Avoid overflow in wakeup time computation

Simon Matter (1):
      Add missing #ifdef SSL_OP_NO_TLSv1_1/2

Steffan Karger (1):
      Check for more data in control channel


1) Double free memory error
Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to double-free memory error in Interactive Service. A remote attacker can trigger memory corruption and cause the service to crash.
Remediation

Update to version 2.4.6.
External links

https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24
Comment 1 Manuel Rüger (RETIRED) gentoo-dev 2018-06-02 12:11:53 UTC
commit c5f422c9b6e6bd7a823d2d493cb9ffdb560413bc
Author: Manuel Rüger <mrueg@gentoo.org>
Date:   Sat May 26 03:18:27 2018 +0200

    net-vpn/openvpn: Version bump to 2.4.6
    
    Package-Manager: Portage-2.3.40, Repoman-2.3.9
Comment 2 Manuel Rüger (RETIRED) gentoo-dev 2018-06-02 12:12:14 UTC
Arches please stabilize 2.4.6
Comment 3 Mart Raudsepp gentoo-dev 2018-06-02 15:25:31 UTC
No stable keywords for arm64, nothing to do..
Comment 4 Stabilization helper bot gentoo-dev 2018-06-03 07:00:11 UTC
An automated check of this bug failed - the following atom is unknown:

net-misc/openvpn-2.4.6

Please verify the atom list.
Comment 5 Stabilization helper bot gentoo-dev 2018-06-03 08:00:55 UTC
An automated check of this bug succeeded - the previous repoman errors are now resolved.
Comment 6 Larry the Git Cow gentoo-dev 2018-06-03 10:12:40 UTC
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=3124319a6ff946ebdb7ab54404a64220455c919e

commit 3124319a6ff946ebdb7ab54404a64220455c919e
Author:     Sergei Trofimovich <slyfox@gentoo.org>
AuthorDate: 2018-06-03 10:12:15 +0000
Commit:     Sergei Trofimovich <slyfox@gentoo.org>
CommitDate: 2018-06-03 10:12:30 +0000

    net-vpn/openvpn: stable 2.4.6 for ia64, bug #654028
    
    Bug: https://bugs.gentoo.org/654028
    Package-Manager: Portage-2.3.38, Repoman-2.3.9
    RepoMan-Options: --include-arches="ia64"

 net-vpn/openvpn/openvpn-2.4.6.ebuild | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
Comment 7 Mikle Kolyada (RETIRED) archtester Gentoo Infrastructure gentoo-dev Security 2018-06-03 16:34:49 UTC
amd64 stable
Comment 8 Thomas Deutschmann (RETIRED) gentoo-dev 2018-06-06 23:27:20 UTC
x86 stable
Comment 9 Markus Meier gentoo-dev 2018-06-11 17:57:15 UTC
arm stable
Comment 10 Tobias Klausmann (RETIRED) gentoo-dev 2018-06-21 07:28:47 UTC
Stable on alpha.
Comment 11 Larry the Git Cow gentoo-dev 2018-06-24 19:39:15 UTC
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=59266341d1325d280d04e3f091f2e0faf30701bd

commit 59266341d1325d280d04e3f091f2e0faf30701bd
Author:     Sergei Trofimovich <slyfox@gentoo.org>
AuthorDate: 2018-06-24 17:31:28 +0000
Commit:     Sergei Trofimovich <slyfox@gentoo.org>
CommitDate: 2018-06-24 19:35:15 +0000

    net-vpn/openvpn: stable 2.4.6 for ppc, bug #654028
    
    Bug: https://bugs.gentoo.org/654028
    Package-Manager: Portage-2.3.40, Repoman-2.3.9
    RepoMan-Options: --include-arches="ppc"

 net-vpn/openvpn/openvpn-2.4.6.ebuild | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
Comment 12 Larry the Git Cow gentoo-dev 2018-06-24 20:24:08 UTC
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c4bb8db052ade32f84d571f20876cb74567e871b

commit c4bb8db052ade32f84d571f20876cb74567e871b
Author:     Sergei Trofimovich <slyfox@gentoo.org>
AuthorDate: 2018-06-24 19:48:23 +0000
Commit:     Sergei Trofimovich <slyfox@gentoo.org>
CommitDate: 2018-06-24 20:20:23 +0000

    net-vpn/openvpn: stable 2.4.6 for ppc64, bug #654028
    
    Bug: https://bugs.gentoo.org/654028
    Package-Manager: Portage-2.3.40, Repoman-2.3.9
    RepoMan-Options: --include-arches="ppc64"

 net-vpn/openvpn/openvpn-2.4.6.ebuild | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
Comment 13 Aaron Bauman (RETIRED) gentoo-dev 2018-11-25 01:42:58 UTC
@maintainers, please clean vulnerable.
Comment 14 Aaron Bauman (RETIRED) gentoo-dev 2018-12-01 10:06:01 UTC
tree is clean