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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.1561 SUSE Security Update: Security update for openvpn 22 June 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openvpn Publisher: SUSE Operating System: SUSE Impact/Access: Access Privileged Data -- Remote with User Interaction Denial of Service -- Remote/Unauthenticated Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2017-7521 CVE-2017-7520 CVE-2017-7508 Comment: This bulletin contains two (2) SUSE security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for openvpn ______________________________________________________________________________ Announcement ID: SUSE-SU-2017:1635-1 Rating: important References: #1044947 Cross-References: CVE-2017-7508 CVE-2017-7520 CVE-2017-7521 Affected Products: SUSE OpenStack Cloud 6 SUSE Linux Enterprise Server for SAP 12-SP1 SUSE Linux Enterprise Server for SAP 12 SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 SUSE Linux Enterprise Server 12-SP2 SUSE Linux Enterprise Server 12-SP1-LTSS SUSE Linux Enterprise Server 12-LTSS SUSE Linux Enterprise Desktop 12-SP2 ______________________________________________________________________________ An update that fixes three vulnerabilities is now available. Description: 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] Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE OpenStack Cloud 6: zypper in -t patch SUSE-OpenStack-Cloud-6-2017-1011=1 - SUSE Linux Enterprise Server for SAP 12-SP1: zypper in -t patch SUSE-SLE-SAP-12-SP1-2017-1011=1 - SUSE Linux Enterprise Server for SAP 12: zypper in -t patch SUSE-SLE-SAP-12-2017-1011=1 - SUSE Linux Enterprise Server for Raspberry Pi 12-SP2: zypper in -t patch SUSE-SLE-RPI-12-SP2-2017-1011=1 - SUSE Linux Enterprise Server 12-SP2: zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1011=1 - SUSE Linux Enterprise Server 12-SP1-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-1011=1 - SUSE Linux Enterprise Server 12-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-2017-1011=1 - SUSE Linux Enterprise Desktop 12-SP2: zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-1011=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE OpenStack Cloud 6 (x86_64): openvpn-2.3.8-16.17.1 openvpn-auth-pam-plugin-2.3.8-16.17.1 openvpn-auth-pam-plugin-debuginfo-2.3.8-16.17.1 openvpn-debuginfo-2.3.8-16.17.1 openvpn-debugsource-2.3.8-16.17.1 - SUSE Linux Enterprise Server for SAP 12-SP1 (ppc64le x86_64): openvpn-2.3.8-16.17.1 openvpn-auth-pam-plugin-2.3.8-16.17.1 openvpn-auth-pam-plugin-debuginfo-2.3.8-16.17.1 openvpn-debuginfo-2.3.8-16.17.1 openvpn-debugsource-2.3.8-16.17.1 - SUSE Linux Enterprise Server for SAP 12 (x86_64): openvpn-2.3.8-16.17.1 openvpn-auth-pam-plugin-2.3.8-16.17.1 openvpn-auth-pam-plugin-debuginfo-2.3.8-16.17.1 openvpn-debuginfo-2.3.8-16.17.1 openvpn-debugsource-2.3.8-16.17.1 - SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (aarch64): openvpn-2.3.8-16.17.1 openvpn-auth-pam-plugin-2.3.8-16.17.1 openvpn-auth-pam-plugin-debuginfo-2.3.8-16.17.1 openvpn-debuginfo-2.3.8-16.17.1 openvpn-debugsource-2.3.8-16.17.1 - SUSE Linux Enterprise Server 12-SP2 (aarch64 ppc64le x86_64): openvpn-2.3.8-16.17.1 openvpn-auth-pam-plugin-2.3.8-16.17.1 openvpn-auth-pam-plugin-debuginfo-2.3.8-16.17.1 openvpn-debuginfo-2.3.8-16.17.1 openvpn-debugsource-2.3.8-16.17.1 - SUSE Linux Enterprise Server 12-SP1-LTSS (ppc64le s390x x86_64): openvpn-2.3.8-16.17.1 openvpn-auth-pam-plugin-2.3.8-16.17.1 openvpn-auth-pam-plugin-debuginfo-2.3.8-16.17.1 openvpn-debuginfo-2.3.8-16.17.1 openvpn-debugsource-2.3.8-16.17.1 - SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64): openvpn-2.3.8-16.17.1 openvpn-auth-pam-plugin-2.3.8-16.17.1 openvpn-auth-pam-plugin-debuginfo-2.3.8-16.17.1 openvpn-debuginfo-2.3.8-16.17.1 openvpn-debugsource-2.3.8-16.17.1 - SUSE Linux Enterprise Desktop 12-SP2 (x86_64): openvpn-2.3.8-16.17.1 openvpn-debuginfo-2.3.8-16.17.1 openvpn-debugsource-2.3.8-16.17.1 References: https://www.suse.com/security/cve/CVE-2017-7508.html https://www.suse.com/security/cve/CVE-2017-7520.html https://www.suse.com/security/cve/CVE-2017-7521.html https://bugzilla.suse.com/1044947 - -- SUSE Security Update: Security update for openvpn ______________________________________________________________________________ Announcement ID: SUSE-SU-2017:1642-1 Rating: important References: #1044947 Cross-References: CVE-2017-7508 Affected Products: SUSE Linux Enterprise Server 11-SP4 SUSE Linux Enterprise Server 11-SP3-LTSS SUSE Linux Enterprise Point of Sale 11-SP3 SUSE Linux Enterprise Debuginfo 11-SP4 SUSE Linux Enterprise Debuginfo 11-SP3 ______________________________________________________________________________ An update that fixes one vulnerability is now available. Description: This update for openvpn fixes the following issues: - 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] Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server 11-SP4: zypper in -t patch slessp4-openvpn-13166=1 - SUSE Linux Enterprise Server 11-SP3-LTSS: zypper in -t patch slessp3-openvpn-13166=1 - SUSE Linux Enterprise Point of Sale 11-SP3: zypper in -t patch sleposp3-openvpn-13166=1 - SUSE Linux Enterprise Debuginfo 11-SP4: zypper in -t patch dbgsp4-openvpn-13166=1 - SUSE Linux Enterprise Debuginfo 11-SP3: zypper in -t patch dbgsp3-openvpn-13166=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Server 11-SP4 (i586 ia64 ppc64 s390x x86_64): openvpn-2.0.9-143.46.1 openvpn-auth-pam-plugin-2.0.9-143.46.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 s390x x86_64): openvpn-2.0.9-143.46.1 openvpn-auth-pam-plugin-2.0.9-143.46.1 - SUSE Linux Enterprise Point of Sale 11-SP3 (i586): openvpn-2.0.9-143.46.1 openvpn-auth-pam-plugin-2.0.9-143.46.1 - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ia64 ppc64 s390x x86_64): openvpn-debuginfo-2.0.9-143.46.1 openvpn-debugsource-2.0.9-143.46.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64): openvpn-debuginfo-2.0.9-143.46.1 openvpn-debugsource-2.0.9-143.46.1 References: https://www.suse.com/security/cve/CVE-2017-7508.html https://bugzilla.suse.com/1044947 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWUsYs4x+lLeg9Ub1AQjdow/8CYCtKY8VFkBK6GsvS5uF2MLxuNmK1DLp KO7zIbIVVYkT4BmmHulaPY1jYM70xPHfFGio4XQ4C2PCN/WBzdBhf3tjQTyuNaGR FxFQGq1xoteQOYYDUkkBHnvp8gU3KEMa4mIWgdTpkMejEyWbXWh7HJa++cTLI4pA 9OAaYn9xtGqY4z7HJ0CpcmtmBfAvuTOuREQVaBnW9qWdR0JLh29q7MkIgjK4f9LJ f+hEng+Vph4dxeqSdFUe8lnBzlanKwDAUlZlQDy0b9PujFvrqAmpoS5u6dcrKF+a KRSY4liN1cn1WMskAEP5QzzIgHYQAy1u+ziAJOe/gOiHineIHShFSi6n+swnTFG1 2UAg4pRtEGt4/S1pQo7z1N8GQD7rg4rBTblUZhXdzCbYPvUY56v4ji2fiomxd9uV HuytwC8rK/705FHv7rpEkotfK+hTPLMQDhnbp0XY9uS8cdcGpzTiSWsflz5BSRI2 lDcZGyookKe7reoIhdQh0tsALnEp8O9MXoma9hnshQrr7/jSyOJlhQxz2eFRtTKc JWU2l7yEMkGY9pPZA1/YdAjrbpV7AtcTjfGk9+pnZq/dp/uYjkWLRuXmdxq6BHvZ 32MiMUyV6Tb4Q+m8BYy3V1W2kQwEgDKtBYwJRJTATHaB99vsFqx/Xbq1urbGYCWt s6sUsmKXD7M= =L4ZT -----END PGP SIGNATURE-----