Security update for openvpn SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2021:0734-1 Final 1 1 2021-05-15T16:04:52Z current 2021-05-15T16:04:52Z 2021-05-15T16:04:52Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for openvpn This update for openvpn fixes the following issues: - CVE-2020-15078: Fixed authentication bypass with deferred authentication (bsc#1185279). - CVE-2020-11810: Fixed race condition between allocating peer-id and initializing data channel key (bsc#1169925). - CVE-2018-7544: Fixed cross-protocol scripting issue that was discovered in the management interface (bsc#1085803). This update was imported from the SUSE:SLE-15:Update update project. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-2021-734 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/C5VK3H4AGK4ZRCLIB2D3IB7SS5RI4AZK/ E-Mail link for openSUSE-SU-2021:0734-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1085803 SUSE Bug 1085803 https://bugzilla.suse.com/1169925 SUSE Bug 1169925 https://bugzilla.suse.com/1185279 SUSE Bug 1185279 https://www.suse.com/security/cve/CVE-2018-7544/ SUSE CVE CVE-2018-7544 page https://www.suse.com/security/cve/CVE-2020-11810/ SUSE CVE CVE-2020-11810 page https://www.suse.com/security/cve/CVE-2020-15078/ SUSE CVE CVE-2020-15078 page openSUSE Leap 15.2 openvpn-2.4.3-lp152.6.3.1 openvpn-auth-pam-plugin-2.4.3-lp152.6.3.1 openvpn-devel-2.4.3-lp152.6.3.1 openvpn-down-root-plugin-2.4.3-lp152.6.3.1 openvpn-2.4.3-lp152.6.3.1 as a component of openSUSE Leap 15.2 openvpn-auth-pam-plugin-2.4.3-lp152.6.3.1 as a component of openSUSE Leap 15.2 openvpn-devel-2.4.3-lp152.6.3.1 as a component of openSUSE Leap 15.2 openvpn-down-root-plugin-2.4.3-lp152.6.3.1 as a component of openSUSE Leap 15.2 ** DISPUTED ** A cross-protocol scripting issue was discovered in the management interface in OpenVPN through 2.4.5. When this interface is enabled over TCP without a password, and when no other clients are connected to this interface, attackers can execute arbitrary management commands, obtain sensitive information, or cause a denial of service (SIGTERM) by triggering XMLHttpRequest actions in a web browser. This is demonstrated by a multipart/form-data POST to http://localhost:23000 with a "signal SIGTERM" command in a TEXTAREA element. NOTE: The vendor disputes that this is a vulnerability. They state that this is the result of improper configuration of the OpenVPN instance rather than an intrinsic vulnerability, and now more explicitly warn against such configurations in both the management-interface documentation, and with a runtime warning. CVE-2018-7544 openSUSE Leap 15.2:openvpn-2.4.3-lp152.6.3.1 openSUSE Leap 15.2:openvpn-auth-pam-plugin-2.4.3-lp152.6.3.1 openSUSE Leap 15.2:openvpn-devel-2.4.3-lp152.6.3.1 openSUSE Leap 15.2:openvpn-down-root-plugin-2.4.3-lp152.6.3.1 low To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/C5VK3H4AGK4ZRCLIB2D3IB7SS5RI4AZK/ https://www.suse.com/security/cve/CVE-2018-7544.html CVE-2018-7544 https://bugzilla.suse.com/1085803 SUSE Bug 1085803 An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet arrives before the data channel crypto parameters have been initialized, the victim's connection will be dropped. This requires careful timing due to the small time window (usually within a few seconds) between the victim client connection starting and the server PUSH_REPLY response back to the client. This attack will only work if Negotiable Cipher Parameters (NCP) is in use. CVE-2020-11810 openSUSE Leap 15.2:openvpn-2.4.3-lp152.6.3.1 openSUSE Leap 15.2:openvpn-auth-pam-plugin-2.4.3-lp152.6.3.1 openSUSE Leap 15.2:openvpn-devel-2.4.3-lp152.6.3.1 openSUSE Leap 15.2:openvpn-down-root-plugin-2.4.3-lp152.6.3.1 low To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/C5VK3H4AGK4ZRCLIB2D3IB7SS5RI4AZK/ https://www.suse.com/security/cve/CVE-2020-11810.html CVE-2020-11810 https://bugzilla.suse.com/1169925 SUSE Bug 1169925 OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks. CVE-2020-15078 openSUSE Leap 15.2:openvpn-2.4.3-lp152.6.3.1 openSUSE Leap 15.2:openvpn-auth-pam-plugin-2.4.3-lp152.6.3.1 openSUSE Leap 15.2:openvpn-devel-2.4.3-lp152.6.3.1 openSUSE Leap 15.2:openvpn-down-root-plugin-2.4.3-lp152.6.3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/C5VK3H4AGK4ZRCLIB2D3IB7SS5RI4AZK/ https://www.suse.com/security/cve/CVE-2020-15078.html CVE-2020-15078 https://bugzilla.suse.com/1185279 SUSE Bug 1185279