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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2601 varnish:6 security update 3 August 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: varnish:6 Publisher: Red Hat Operating System: Red Hat UNIX variants (UNIX, Linux, OSX) Impact/Access: Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2021-36740 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:2988 Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running varnish:6 check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: varnish:6 security update Advisory ID: RHSA-2021:2988-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2988 Issue date: 2021-08-02 CVE Names: CVE-2021-36740 ===================================================================== 1. Summary: An update for the varnish:6 module is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.1 Extended Update Support, and Red Hat Enterprise Linux 8.2 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 (v. 8) - aarch64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux AppStream EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux AppStream EUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64 3. Description: Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web page over and over again, giving the website a significant speed up. Security Fix(es): * varnish: HTTP/2 request smuggling attack via a large Content-Length header for a POST request (CVE-2021-36740) 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/): 1982409 - CVE-2021-36740 varnish: HTTP/2 request smuggling attack via a large Content-Length header for a POST request 6. Package List: Red Hat Enterprise Linux AppStream EUS (v. 8.1): Source: varnish-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.src.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.src.rpm aarch64: varnish-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.aarch64.rpm varnish-devel-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.aarch64.rpm varnish-docs-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.aarch64.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.aarch64.rpm varnish-modules-debuginfo-0.15.0-4.module+el8+2481+4078e9d2.aarch64.rpm varnish-modules-debugsource-0.15.0-4.module+el8+2481+4078e9d2.aarch64.rpm ppc64le: varnish-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.ppc64le.rpm varnish-devel-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.ppc64le.rpm varnish-docs-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.ppc64le.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.ppc64le.rpm varnish-modules-debuginfo-0.15.0-4.module+el8+2481+4078e9d2.ppc64le.rpm varnish-modules-debugsource-0.15.0-4.module+el8+2481+4078e9d2.ppc64le.rpm s390x: varnish-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.s390x.rpm varnish-devel-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.s390x.rpm varnish-docs-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.s390x.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.s390x.rpm varnish-modules-debuginfo-0.15.0-4.module+el8+2481+4078e9d2.s390x.rpm varnish-modules-debugsource-0.15.0-4.module+el8+2481+4078e9d2.s390x.rpm x86_64: varnish-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.x86_64.rpm varnish-devel-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.x86_64.rpm varnish-docs-6.0.2-2.module+el8.1.0+11974+ea5ba4f1.x86_64.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.x86_64.rpm varnish-modules-debuginfo-0.15.0-4.module+el8+2481+4078e9d2.x86_64.rpm varnish-modules-debugsource-0.15.0-4.module+el8+2481+4078e9d2.x86_64.rpm Red Hat Enterprise Linux AppStream EUS (v. 8.2): Source: varnish-6.0.2-2.module+el8.2.0+11973+a748eca7.src.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.src.rpm aarch64: varnish-6.0.2-2.module+el8.2.0+11973+a748eca7.aarch64.rpm varnish-devel-6.0.2-2.module+el8.2.0+11973+a748eca7.aarch64.rpm varnish-docs-6.0.2-2.module+el8.2.0+11973+a748eca7.aarch64.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.aarch64.rpm varnish-modules-debuginfo-0.15.0-4.module+el8+2481+4078e9d2.aarch64.rpm varnish-modules-debugsource-0.15.0-4.module+el8+2481+4078e9d2.aarch64.rpm ppc64le: varnish-6.0.2-2.module+el8.2.0+11973+a748eca7.ppc64le.rpm varnish-devel-6.0.2-2.module+el8.2.0+11973+a748eca7.ppc64le.rpm varnish-docs-6.0.2-2.module+el8.2.0+11973+a748eca7.ppc64le.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.ppc64le.rpm varnish-modules-debuginfo-0.15.0-4.module+el8+2481+4078e9d2.ppc64le.rpm varnish-modules-debugsource-0.15.0-4.module+el8+2481+4078e9d2.ppc64le.rpm s390x: varnish-6.0.2-2.module+el8.2.0+11973+a748eca7.s390x.rpm varnish-devel-6.0.2-2.module+el8.2.0+11973+a748eca7.s390x.rpm varnish-docs-6.0.2-2.module+el8.2.0+11973+a748eca7.s390x.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.s390x.rpm varnish-modules-debuginfo-0.15.0-4.module+el8+2481+4078e9d2.s390x.rpm varnish-modules-debugsource-0.15.0-4.module+el8+2481+4078e9d2.s390x.rpm x86_64: varnish-6.0.2-2.module+el8.2.0+11973+a748eca7.x86_64.rpm varnish-devel-6.0.2-2.module+el8.2.0+11973+a748eca7.x86_64.rpm varnish-docs-6.0.2-2.module+el8.2.0+11973+a748eca7.x86_64.rpm varnish-modules-0.15.0-4.module+el8+2481+4078e9d2.x86_64.rpm varnish-modules-debuginfo-0.15.0-4.module+el8+2481+4078e9d2.x86_64.rpm varnish-modules-debugsource-0.15.0-4.module+el8+2481+4078e9d2.x86_64.rpm Red Hat Enterprise Linux AppStream (v. 8): Source: varnish-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.src.rpm varnish-modules-0.15.0-5.module+el8.3.0+6843+b3b42fcc.src.rpm aarch64: varnish-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.aarch64.rpm varnish-devel-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.aarch64.rpm varnish-docs-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.aarch64.rpm varnish-modules-0.15.0-5.module+el8.3.0+6843+b3b42fcc.aarch64.rpm varnish-modules-debuginfo-0.15.0-5.module+el8.3.0+6843+b3b42fcc.aarch64.rpm varnish-modules-debugsource-0.15.0-5.module+el8.3.0+6843+b3b42fcc.aarch64.rpm ppc64le: varnish-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.ppc64le.rpm varnish-devel-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.ppc64le.rpm varnish-docs-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.ppc64le.rpm varnish-modules-0.15.0-5.module+el8.3.0+6843+b3b42fcc.ppc64le.rpm varnish-modules-debuginfo-0.15.0-5.module+el8.3.0+6843+b3b42fcc.ppc64le.rpm varnish-modules-debugsource-0.15.0-5.module+el8.3.0+6843+b3b42fcc.ppc64le.rpm s390x: varnish-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.s390x.rpm varnish-devel-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.s390x.rpm varnish-docs-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.s390x.rpm varnish-modules-0.15.0-5.module+el8.3.0+6843+b3b42fcc.s390x.rpm varnish-modules-debuginfo-0.15.0-5.module+el8.3.0+6843+b3b42fcc.s390x.rpm varnish-modules-debugsource-0.15.0-5.module+el8.3.0+6843+b3b42fcc.s390x.rpm x86_64: varnish-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.x86_64.rpm varnish-devel-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.x86_64.rpm varnish-docs-6.0.6-2.module+el8.4.0+11921+1a6539fc.1.x86_64.rpm varnish-modules-0.15.0-5.module+el8.3.0+6843+b3b42fcc.x86_64.rpm varnish-modules-debuginfo-0.15.0-5.module+el8.3.0+6843+b3b42fcc.x86_64.rpm varnish-modules-debugsource-0.15.0-5.module+el8.3.0+6843+b3b42fcc.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-2021-36740 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 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYQgMbtzjgjWX9erEAQiIbQ//TLlk1G+h6Ger2cDsktpvO6YfZPjNntR5 1MUpa7b8A6ixy518IAaXEyk1u7ngYC01qVW78Cpc0wJorEAeGD8HOdOclp8uElNu 6Wk8/bS3LD/MGi8wH03jmdrF+gcsPsPVN/xJSZH7CBn0/WtM5aVXsYwk9t/bcw89 U1BWoRuK6DCtZhoOUmHhQ//iMCQycVakatHqlQuzEFg2vJW5KQBx4xfAaq1C4oP3 Y4CzE2TNVXGKByH/jtOBViRh3qEeVg+1S5yNYL4p0eVxnxxCrb51HaSz0QXkga1v m+s96GQh4G1ZxOIVwd5V76YEB8CsSXPVqu8SSEuWpjWb7J2PRGWKe2PzMKYPolnk 1s/acLpaUo/mGvypCDedlJ6saTY8OeZVVpDsZyb4dBit1xFWtpI+sjezFJZfVPnq JiI+aEgzB9hFHwhXQQyNhod+EbZUBs/gTyqQ1GUZSdAaE0F0DSI8/9oDC1o4OZ6Q 3j3TEwK13iNhe7gP9MmjI+NTr/+MTCoumOccRmLH1XIzEtLl78HhuSDkmiS1eTbS LqmchZcD8s8QHiLAT/qgtUAGRBHbbIEp1pEmOIGhd7JacZSRbFJnH+kbedBy/Ttl yncZ0ROA4tXp4I80c9cYlLLtrubJuznLl63cr3RuO9Sn3+9ZCKy7VEsxW8HbNubE 33GXaJ1H5xA= =SR/u - -----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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