{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2021-43797","title":"Title"},{"category":"description","text":"Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to \"sanitize\" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.","title":"Description of the CVE"},{"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":"external","summary":"CVE-2021-43797","url":"https://www.suse.com/security/cve/CVE-2021-43797"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1193672 for CVE-2021-43797","url":"https://bugzilla.suse.com/1193672"},{"category":"external","summary":"Advisory link for SUSE-SU-2022:1271-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2022-April/010773.html"},{"category":"external","summary":"Advisory link for SUSE-SU-2022:2047-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2022-June/011268.html"}],"title":"SUSE CVE CVE-2021-43797","tracking":{"current_release_date":"2025-08-15T23:32:01Z","generator":{"date":"2023-02-15T03:36:48Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2021-43797","initial_release_date":"2023-02-15T03:36:48Z","revision_history":[{"date":"2023-02-15T03:36:48Z","number":"2","summary":"Current version"},{"date":"2025-01-01T04:08:24Z","number":"3","summary":"Current version"},{"date":"2025-01-10T02:34:19Z","number":"4","summary":"Current version"},{"date":"2025-02-15T04:43:08Z","number":"5","summary":"Current version"},{"date":"2025-02-17T05:05:44Z","number":"6","summary":"Current version"},{"date":"2025-03-15T08:36:55Z","number":"7","summary":"Current version"},{"date":"2025-04-02T09:34:04Z","number":"8","summary":"Current version"},{"date":"2025-05-17T05:30:57Z","number":"9","summary":"Current version"},{"date":"2025-06-26T04:01:57Z","number":"10","summary":"Current version"},{"date":"2025-07-01T00:46:31Z","number":"11","summary":"Current version"},{"date":"2025-08-15T23:32:01Z","number":"12","summary":"Current version"}],"status":"interim","version":"12"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"SUSE Enterprise Storage 7.1","product":{"name":"SUSE Enterprise Storage 7.1","product_id":"SUSE Enterprise Storage 7.1","product_identification_helper":{"cpe":"cpe:/o:suse:ses:7.1"}}},{"category":"product_name","name":"SUSE Linux Enterprise Desktop 15 SP3","product":{"name":"SUSE Linux Enterprise Desktop 15 SP3","product_id":"SUSE Linux Enterprise Desktop 15 SP3","product_identification_helper":{"cpe":"cpe:/o:suse:sled:15:sp3"}}},{"category":"product_name","name":"SUSE Linux Enterprise Desktop 15 SP4","product":{"name":"SUSE Linux Enterprise Desktop 15 SP4","product_id":"SUSE Linux Enterprise Desktop 15 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Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to \"sanitize\" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.","title":"CVE description"}],"product_status":{"known_not_affected":["SUSE Manager Server Module 4.1:netty","SUSE Manager Server Module 4.2:netty","SUSE Manager Server Module 4.3:netty"],"recommended":["SUSE Enterprise Storage 7.1:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise Desktop 15 SP3:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise Desktop 15 SP4:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise Desktop 15 SP5:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise Desktop 15 SP6:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise Desktop 15 SP7:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise High Performance Computing 15 SP3:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise High Performance Computing 15 SP4:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise High Performance Computing 15 SP5:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise High Performance Computing 15 SP6:netty3-3.10.6-150200.3.3.2","SUSE Linux Enterprise 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