{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"critical"},"category":"csaf_security_advisory","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":"Security update for python-h11, python-httpcore","title":"Title of the patch"},{"category":"description","text":"This update for python-h11, python-httpcore fixes the following issues:\n\npython-h11:\n  - Update 0.16.0:\n    * CVE-2025-43859: Fixed accepting of malformed Chunked-Encoding bodies (bsc#1241872)\n  - 0.15.0:\n    * Reject Content-Lengths >= 1 zettabyte (1 billion terabytes) early,\n      without attempting to parse the integer (#181)\n\npython-httpcore:\n  - CVE-2025-43859: Fixed accepting of malformed Chunked-Encoding bodies (bsc#1241872) \n","title":"Description of the patch"},{"category":"details","text":"SUSE-SLE-Micro-6.1-114","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":"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-2025_20330-1.json"},{"category":"self","summary":"URL for SUSE-SU-2025:20330-1","url":"https://www.suse.com/support/update/announcement/2025/suse-su-202520330-1/"},{"category":"self","summary":"E-Mail link for SUSE-SU-2025:20330-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2025-May/020908.html"},{"category":"self","summary":"SUSE Bug 1241872","url":"https://bugzilla.suse.com/1241872"},{"category":"self","summary":"SUSE CVE CVE-2025-43859 page","url":"https://www.suse.com/security/cve/CVE-2025-43859/"}],"title":"Security update for python-h11, python-httpcore","tracking":{"current_release_date":"2025-05-20T08:39:06Z","generator":{"date":"2025-05-20T08:39:06Z","engine":{"name":"cve-database.git:bin/generate-csaf.pl","version":"1"}},"id":"SUSE-SU-2025:20330-1","initial_release_date":"2025-05-20T08:39:06Z","revision_history":[{"date":"2025-05-20T08:39:06Z","number":"1","summary":"Current version"}],"status":"final","version":"1"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_version","name":"python311-h11-0.16.0-slfo.1.1_1.1.noarch","product":{"name":"python311-h11-0.16.0-slfo.1.1_1.1.noarch","product_id":"python311-h11-0.16.0-slfo.1.1_1.1.noarch"}},{"category":"product_version","name":"python311-httpcore-0.16.3-slfo.1.1_2.1.noarch","product":{"name":"python311-httpcore-0.16.3-slfo.1.1_2.1.noarch","product_id":"python311-httpcore-0.16.3-slfo.1.1_2.1.noarch"}}],"category":"architecture","name":"noarch"},{"branches":[{"category":"product_name","name":"SUSE Linux Micro 6.1","product":{"name":"SUSE Linux Micro 6.1","product_id":"SUSE Linux Micro 6.1","product_identification_helper":{"cpe":"cpe:/o:suse:sl-micro:6.1"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"python311-h11-0.16.0-slfo.1.1_1.1.noarch as component of SUSE Linux Micro 6.1","product_id":"SUSE Linux Micro 6.1:python311-h11-0.16.0-slfo.1.1_1.1.noarch"},"product_reference":"python311-h11-0.16.0-slfo.1.1_1.1.noarch","relates_to_product_reference":"SUSE Linux Micro 6.1"},{"category":"default_component_of","full_product_name":{"name":"python311-httpcore-0.16.3-slfo.1.1_2.1.noarch as component of SUSE Linux Micro 6.1","product_id":"SUSE Linux Micro 6.1:python311-httpcore-0.16.3-slfo.1.1_2.1.noarch"},"product_reference":"python311-httpcore-0.16.3-slfo.1.1_2.1.noarch","relates_to_product_reference":"SUSE Linux Micro 6.1"}]},"vulnerabilities":[{"cve":"CVE-2025-43859","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2025-43859"}],"notes":[{"category":"general","text":"h11 is a Python implementation of HTTP/1.1. Prior to version 0.16.0, a leniency in h11's parsing of line terminators in chunked-coding message bodies can lead to request smuggling vulnerabilities under certain conditions. This issue has been patched in version 0.16.0. Since exploitation requires the combination of buggy h11 with a buggy (reverse) proxy, fixing either component is sufficient to mitigate this issue.","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Micro 6.1:python311-h11-0.16.0-slfo.1.1_1.1.noarch","SUSE Linux Micro 6.1:python311-httpcore-0.16.3-slfo.1.1_2.1.noarch"]},"references":[{"category":"external","summary":"CVE-2025-43859","url":"https://www.suse.com/security/cve/CVE-2025-43859"},{"category":"external","summary":"SUSE Bug 1241872 for CVE-2025-43859","url":"https://bugzilla.suse.com/1241872"}],"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 Micro 6.1:python311-h11-0.16.0-slfo.1.1_1.1.noarch","SUSE Linux Micro 6.1:python311-httpcore-0.16.3-slfo.1.1_2.1.noarch"]}],"scores":[{"cvss_v3":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"products":["SUSE Linux Micro 6.1:python311-h11-0.16.0-slfo.1.1_1.1.noarch","SUSE Linux Micro 6.1:python311-httpcore-0.16.3-slfo.1.1_2.1.noarch"]}],"threats":[{"category":"impact","date":"2025-05-20T08:39:06Z","details":"critical"}],"title":"CVE-2025-43859"}]}