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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1665 libreswan security updates 13 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libreswan Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 8 Red Hat Enterprise Linux WS/Desktop 8 UNIX variants (UNIX, Linux, OSX) Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-1763 Original Bulletin: https://access.redhat.com/errata/RHSA-2020:2069 https://access.redhat.com/errata/RHSA-2020:2070 https://access.redhat.com/errata/RHSA-2020:2071 Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running libreswan check for an updated version of the software for their operating system. This bulletin contains three (3) Red Hat security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libreswan security update Advisory ID: RHSA-2020:2069-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:2069 Issue date: 2020-05-12 CVE Names: CVE-2020-1763 ===================================================================== 1. Summary: An update for libreswan is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream E4S (v. 8.0) - aarch64, ppc64le, s390x, x86_64 3. Description: Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN). Security Fix(es): * libreswan: DoS attack via malicious IKEv1 informational exchange message (CVE-2020-1763) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1814541 - CVE-2020-1763 libreswan: DoS attack via malicious IKEv1 informational exchange message 6. Package List: Red Hat Enterprise Linux AppStream E4S (v. 8.0): Source: libreswan-3.27-10.el8_0.src.rpm aarch64: libreswan-3.27-10.el8_0.aarch64.rpm libreswan-debuginfo-3.27-10.el8_0.aarch64.rpm libreswan-debugsource-3.27-10.el8_0.aarch64.rpm ppc64le: libreswan-3.27-10.el8_0.ppc64le.rpm libreswan-debuginfo-3.27-10.el8_0.ppc64le.rpm libreswan-debugsource-3.27-10.el8_0.ppc64le.rpm s390x: libreswan-3.27-10.el8_0.s390x.rpm libreswan-debuginfo-3.27-10.el8_0.s390x.rpm libreswan-debugsource-3.27-10.el8_0.s390x.rpm x86_64: libreswan-3.27-10.el8_0.x86_64.rpm libreswan-debuginfo-3.27-10.el8_0.x86_64.rpm libreswan-debugsource-3.27-10.el8_0.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-1763 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXrpRatzjgjWX9erEAQjrOQ//RhGgRGAbNZjVLmmLen+vfTM3gzG1FLe6 U7Y8d5lNjP+Cw93/4m1iabuw94KlT+VduyN4AwlBL5co+B4Vw6gEPk6IiMVQIz6F NJvO/Lo0Ys/wql5crriz007Rg5k1/QRrVLQ6B11fC/h+I5tcBe2kl2Eh/MxlBo8Q bs0KZyWS/qfEpdXA8I3NLqN5k/1VjTsHDl2ScpDguYFE2a0UpQv6HjFMKYAGq+3R cQSFDowXn/DCnyPHzBqAuwZB20IE0BHIidy05L2DRo/3PnyWg9uWuF59QoloNVh5 6dTjzEOne/sA3MC3cH1YsbFAyR3m2uCidRfWtyg4VwBCPxEvB499NxrI3EWDPmMU 8KzO+4k6vLg4rgLMym7iXgutMY3SwUyWwRP1OkzieiXPHa3ad2UVb1HPS7Lwh5hu 16KDABTTMJ3HKuzF1LB9iuA2WJkQehUGSkzkZ811GUnQNF24nMgV5m6QTCKWjwkw KYQl64aJW1cp/YeCPVA3IV2tdB2NFQ13PIVNPqaf6SM2nIvwVJxqm3Ead5sulXXC qp7lf1l9eXbQnSA7sTHjvOSYRm/fyIhLPk0KLxXcOwGQoXLOWRMPLT4eJr1JOKxR HfwioJiAbPneX0eBrgS6wxDK17cU76vcSaPJlJY3nCpYyIkgHY1Yd9mUrpV6ew75 xahpKCFnJrM==7uUT - -----END PGP SIGNATURE----- - ------------------------------------------------------------------------------ - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libreswan security update Advisory ID: RHSA-2020:2070-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:2070 Issue date: 2020-05-12 CVE Names: CVE-2020-1763 ===================================================================== 1. Summary: An update for libreswan is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64 3. Description: Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN). Security Fix(es): * libreswan: DoS attack via malicious IKEv1 informational exchange message (CVE-2020-1763) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1814541 - CVE-2020-1763 libreswan: DoS attack via malicious IKEv1 informational exchange message 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: libreswan-3.29-7.el8_2.src.rpm aarch64: libreswan-3.29-7.el8_2.aarch64.rpm libreswan-debuginfo-3.29-7.el8_2.aarch64.rpm libreswan-debugsource-3.29-7.el8_2.aarch64.rpm ppc64le: libreswan-3.29-7.el8_2.ppc64le.rpm libreswan-debuginfo-3.29-7.el8_2.ppc64le.rpm libreswan-debugsource-3.29-7.el8_2.ppc64le.rpm s390x: libreswan-3.29-7.el8_2.s390x.rpm libreswan-debuginfo-3.29-7.el8_2.s390x.rpm libreswan-debugsource-3.29-7.el8_2.s390x.rpm x86_64: libreswan-3.29-7.el8_2.x86_64.rpm libreswan-debuginfo-3.29-7.el8_2.x86_64.rpm libreswan-debugsource-3.29-7.el8_2.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-1763 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXrpg4tzjgjWX9erEAQicVBAApMUXLpDvbrEZF4P5MieyeuYxBDFK0gZ8 uUSMSfiHmgCO1412tOnkLwt92DroQHCvD7yxDz5wKmA+/8/J+jS/qUEEOyYk9Vqs R3nB06sXdxx1JK0mkU/3ujW6OJXjcpLiLXPejW9nKVJeRlACMbtKEr/dOPrhCJti glHO+DGTLfY3TExvzw1hDk33ltOw8T7Na5idwVBmck/LWHU2M0rS3GjH9P+PLg5y uflD4pwB7h3YdRKJ6lJckbtEaba/5vvz1/zeG+5myytRYHkkzEZh2l4tpp/R3rIT chi0bM1HVuI/jbQ2+oFg+fQH9hayXcSLD9GO3YA1vnGbq6YnGvUXEmEkPuq/X3Iz gi1prT6U2GUfAn13SGhSIpfBswP0PkdBfYbaFo3IlQs8ZAtiEw8fMTD0aHlr03FO 0NTbniWmCybYXrhK6V98jmKO+fBtpzWRD9BuxRoMFZzpCn/4Cv0V7lp0NE1iEIQ0 yshJRwepkDPioTO5w9nEZeAkWkZeI0hfqyTlydTjNCOSAFTMsXMhIYWL7z9pRggH +OqWbzZqjfryd2j9BYC57/jVJ5hV/w+A4NKDyOl8rk8fIXXzaDnhDByoQne1jNDp H+UzNpTFxvLBWBxo4X/9AJ34YbbvBJzNDte4oXQYkYd31WqxhKAcs6brq5iAhAhA vxKU3VV0Kx0==g+ua - -----END PGP SIGNATURE----- - ------------------------------------------------------------------------------ - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libreswan security update Advisory ID: RHSA-2020:2071-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:2071 Issue date: 2020-05-12 CVE Names: CVE-2020-1763 ===================================================================== 1. Summary: An update for libreswan is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64 3. Description: Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN). Security Fix(es): * libreswan: DoS attack via malicious IKEv1 informational exchange message (CVE-2020-1763) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1814541 - CVE-2020-1763 libreswan: DoS attack via malicious IKEv1 informational exchange message 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.1): Source: libreswan-3.29-7.el8_1.src.rpm aarch64: libreswan-3.29-7.el8_1.aarch64.rpm libreswan-debuginfo-3.29-7.el8_1.aarch64.rpm libreswan-debugsource-3.29-7.el8_1.aarch64.rpm ppc64le: libreswan-3.29-7.el8_1.ppc64le.rpm libreswan-debuginfo-3.29-7.el8_1.ppc64le.rpm libreswan-debugsource-3.29-7.el8_1.ppc64le.rpm s390x: libreswan-3.29-7.el8_1.s390x.rpm libreswan-debuginfo-3.29-7.el8_1.s390x.rpm libreswan-debugsource-3.29-7.el8_1.s390x.rpm x86_64: libreswan-3.29-7.el8_1.x86_64.rpm libreswan-debuginfo-3.29-7.el8_1.x86_64.rpm libreswan-debugsource-3.29-7.el8_1.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-1763 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXrpUdtzjgjWX9erEAQiHQBAAom1EBMnNMWSMuImkq3q9B7dP9GfmKQQk n5NqCwdp8K7DPmtetXlJeodLVhGZ1YoyBH+dHfKiGe4+BBTmR6bh9ffBqSyxbjWP g932aclQy+cZbpd3R7BeqYV8B58noB+ggPytZXT9mydCvDfiFanzPkSSDYkYNb0y SNS27nV8W/OovN8wjSNHpFMS+ZwtS7/3C4xzZ2kwUmxDwkvmwOaBe1Wvd8lLytFm 60PHTcmF3XmFcKE4VVSRer7DGz/slE0LFx2szv66gAudQIZqZY5GY9C8aGu90WYr piKs7DWwHP/poPy21g7iIO670U1YS0fSmxI2cI7gCstoqAk8YGiogR3HjhOQNlpS 4wl85CyC5GPqVdciPNT8SNiSgWr/EkwvsfPln4Thjdtef0bxWLIfgOeyBstunpA7 Ny5pOGmH6tnjEZKOqGHz/gbboKLh+v9dY4tSUJp8H6DGcuJV9EFd51FREP+4dxwt lR+48vspVC8FywkG2WKUQ+wZwjqqR3XYKlR6rUQJNV3AvU/1Y1gaAwv5JhfE0x3O eUsSnpdW6PMTWq9buk6uRvPB6RHCKG+Xh8Fyuus/7NiKbwB6CsI0chqSHcKfPNLM Xksmx7KbQ1x/Uioq2pb7fxGD92mHCqOvqQLIPDm8pbORk0ZK8ldghMnxu2q/muTb OMzmvQQoImo= =WMAo - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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: https://www.auscert.org.au/bulletins/ =========================================================================== 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). 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