Security update for openvpn SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2017:1635-1 Final 1 1 2017-06-21T11:51:57Z current 2017-06-21T11:51:57Z 2017-06-21T11:51:57Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for openvpn This update for openvpn fixes the following issues: - Some parts of the certificate-parsing code did not always clear all allocated memory. This would have allowed clients to leak a few bytes of memory for each connection attempt, thereby facilitating a (quite inefficient) DoS attack on the server. [bsc#1044947, CVE-2017-7521] - The ASN1 parsing code contained a bug that could have resulted in some buffers being free()d twice, and this issue could have potentially been triggered remotely by a VPN peer. [bsc#1044947, CVE-2017-7521] - If clients used a HTTP proxy with NTLM authentication, a man-in-the-middle attacker between client and proxy could cause the client to crash or disclose at most 96 bytes of stack memory. The disclosed stack memory was likely to contain the proxy password. If the proxy password had not been reused, this was unlikely to compromise the security of the OpenVPN tunnel itself. Clients who did not use the --http-proxy option with ntlm2 authentication were not affected. [bsc#1044947, CVE-2017-7520] - It was possible to trigger an assertion by sending a malformed IPv6 packet. That issue could have been abused to remotely shutdown an openvpn server or client, if IPv6 and --mssfix were enabled and if the IPv6 networks used inside the VPN were known. [bsc#1044947, CVE-2017-7508] The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-OpenStack-Cloud-6-2017-1011,SUSE-SLE-DESKTOP-12-SP2-2017-1011,SUSE-SLE-RPI-12-SP2-2017-1011,SUSE-SLE-SAP-12-2017-1011,SUSE-SLE-SAP-12-SP1-2017-1011,SUSE-SLE-SERVER-12-2017-1011,SUSE-SLE-SERVER-12-SP1-2017-1011,SUSE-SLE-SERVER-12-SP2-2017-1011 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2017/suse-su-20171635-1/ Link for SUSE-SU-2017:1635-1 https://lists.opensuse.org/opensuse-security-announce/2017-06/msg00027.html E-Mail link for SUSE-SU-2017:1635-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1044947 SUSE Bug 1044947 https://www.suse.com/security/cve/CVE-2017-7508/ SUSE CVE CVE-2017-7508 page https://www.suse.com/security/cve/CVE-2017-7520/ SUSE CVE CVE-2017-7520 page https://www.suse.com/security/cve/CVE-2017-7521/ SUSE CVE CVE-2017-7521 page SUSE Linux Enterprise Desktop 12 SP2 SUSE Linux Enterprise Server 12 SP1-LTSS SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server 12-LTSS SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 SUSE Linux Enterprise Server for SAP Applications 12 SUSE Linux Enterprise Server for SAP Applications 12 SP1 SUSE Linux Enterprise Server for SAP Applications 12 SP2 SUSE OpenStack Cloud 6 openvpn-2.3.8-16.17.1 openvpn-auth-pam-plugin-2.3.8-16.17.1 openvpn-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Desktop 12 SP2 openvpn-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS openvpn-auth-pam-plugin-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS openvpn-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server 12 SP2 openvpn-auth-pam-plugin-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server 12 SP2 openvpn-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server 12-LTSS openvpn-auth-pam-plugin-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server 12-LTSS openvpn-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 openvpn-auth-pam-plugin-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 openvpn-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 openvpn-auth-pam-plugin-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 openvpn-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP1 openvpn-auth-pam-plugin-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP1 openvpn-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP2 openvpn-auth-pam-plugin-2.3.8-16.17.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP2 openvpn-2.3.8-16.17.1 as a component of SUSE OpenStack Cloud 6 openvpn-auth-pam-plugin-2.3.8-16.17.1 as a component of SUSE OpenStack Cloud 6 OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service when receiving malformed IPv6 packet. CVE-2017-7508 SUSE Linux Enterprise Desktop 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP1-LTSS:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP1-LTSS:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP2:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server 12-LTSS:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12-LTSS:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for Raspberry Pi 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for Raspberry Pi 12 SP2:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP1:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP1:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP2:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE OpenStack Cloud 6:openvpn-2.3.8-16.17.1 SUSE OpenStack Cloud 6:openvpn-auth-pam-plugin-2.3.8-16.17.1 important 5.4 AV:N/AC:H/Au:N/C:N/I:N/A:C To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2017/suse-su-20171635-1/ https://www.suse.com/security/cve/CVE-2017-7508.html CVE-2017-7508 https://bugzilla.suse.com/1044947 SUSE Bug 1044947 OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker. CVE-2017-7520 SUSE Linux Enterprise Desktop 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP1-LTSS:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP1-LTSS:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP2:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server 12-LTSS:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12-LTSS:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for Raspberry Pi 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for Raspberry Pi 12 SP2:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP1:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP1:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP2:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE OpenStack Cloud 6:openvpn-2.3.8-16.17.1 SUSE OpenStack Cloud 6:openvpn-auth-pam-plugin-2.3.8-16.17.1 important 7.8 AV:N/AC:M/Au:N/C:P/I:N/A:C To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2017/suse-su-20171635-1/ https://www.suse.com/security/cve/CVE-2017-7520.html CVE-2017-7520 https://bugzilla.suse.com/1044947 SUSE Bug 1044947 OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension(). CVE-2017-7521 SUSE Linux Enterprise Desktop 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP1-LTSS:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP1-LTSS:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12 SP2:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server 12-LTSS:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server 12-LTSS:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for Raspberry Pi 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for Raspberry Pi 12 SP2:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP1:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP1:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP2:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12 SP2:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12:openvpn-2.3.8-16.17.1 SUSE Linux Enterprise Server for SAP Applications 12:openvpn-auth-pam-plugin-2.3.8-16.17.1 SUSE OpenStack Cloud 6:openvpn-2.3.8-16.17.1 SUSE OpenStack Cloud 6:openvpn-auth-pam-plugin-2.3.8-16.17.1 important 7.1 AV:N/AC:M/Au:N/C:N/I:N/A:C To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2017/suse-su-20171635-1/ https://www.suse.com/security/cve/CVE-2017-7521.html CVE-2017-7521 https://bugzilla.suse.com/1044947 SUSE Bug 1044947