{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"category":"csaf_security_advisory","csaf_version":"2.0","distribution":{"text":"Copyright 2023 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"Security update for curl","title":"Title of the patch"},{"category":"description","text":"This update for curl fixes the following issues:\n\n- CVE-2021-22890: TLS 1.3 session ticket proxy host mixup (bsc#1183934)\n- CVE-2021-22876: Automatic referer leaks credentials (bsc#1183933)\n","title":"Description of the patch"},{"category":"details","text":"SUSE-2021-1006,SUSE-SLE-Module-Basesystem-15-SP2-2021-1006,SUSE-SUSE-MicroOS-5.0-2021-1006","title":"Patchnames"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"self","summary":"URL for SUSE-SU-2021:1006-1","url":"https://www.suse.com/support/update/announcement/2021/suse-su-20211006-1/"},{"category":"external","summary":"SUSE ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"self","summary":"URL of this CSAF notice","url":"https://ftp.suse.com/pub/projects/security/csaf/suse-su-2021_1006-1.json"},{"category":"self","summary":"E-Mail link for SUSE-SU-2021:1006-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2021-April/008577.html"},{"category":"self","summary":"SUSE Bug 1183933","url":"https://bugzilla.suse.com/1183933"},{"category":"self","summary":"SUSE Bug 1183934","url":"https://bugzilla.suse.com/1183934"},{"category":"self","summary":"SUSE CVE CVE-2021-22876 page","url":"https://www.suse.com/security/cve/CVE-2021-22876/"},{"category":"self","summary":"SUSE CVE CVE-2021-22890 page","url":"https://www.suse.com/security/cve/CVE-2021-22890/"}],"title":"Security update for 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session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly \"short-cut\" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.","title":"Vulnerability description"}],"product_status":{"fixed":["SUSE Linux Enterprise Micro 5.0:curl-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Micro 5.0:curl-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Micro 5.0:libcurl4-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Micro 5.0:libcurl4-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.ppc64le","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.s390x","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.ppc64le","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.s390x","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-32bit-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.ppc64le","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.s390x","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2021-22890","url":"https://www.suse.com/security/cve/CVE-2021-22890"},{"category":"external","summary":"SUSE Bug 1183934 for CVE-2021-22890","url":"https://bugzilla.suse.com/1183934"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Micro 5.0:curl-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Micro 5.0:curl-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Micro 5.0:libcurl4-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Micro 5.0:libcurl4-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.ppc64le","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.s390x","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.ppc64le","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.s390x","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-32bit-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.ppc64le","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.s390x","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.x86_64"]}],"scores":[{"cvss_v3":{"baseScore":3.1,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"products":["SUSE Linux Enterprise Micro 5.0:curl-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Micro 5.0:curl-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Micro 5.0:libcurl4-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Micro 5.0:libcurl4-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.ppc64le","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.s390x","SUSE Linux Enterprise Module for Basesystem 15 SP2:curl-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.ppc64le","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.s390x","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl-devel-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-32bit-7.66.0-4.14.1.x86_64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.aarch64","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.ppc64le","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.s390x","SUSE Linux Enterprise Module for Basesystem 15 SP2:libcurl4-7.66.0-4.14.1.x86_64"]}],"threats":[{"category":"impact","date":"2021-04-01T15:45:04Z","details":"low"}],"title":"CVE-2021-22890"}]}