{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"low"},"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-2023-32683","title":"Title"},{"category":"description","text":"Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed or image URL can bypass the `url_preview_url_blacklist` setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the `url_preview_ip_range_blacklist` setting (by default this only allows public IPs) and by the limited information returned to the client: 1. For discovered oEmbed URLs, any non-JSON response or a JSON response which includes non-oEmbed information is discarded. 2. For discovered image URLs, any non-image response is discarded. Systems which have URL preview disabled (via the `url_preview_enabled` setting) or have not configured a `url_preview_url_blacklist` are not affected. This issue has been addressed in version 1.85.0. Users are advised to upgrade. User unable to upgrade may also disable URL previews.","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-2023-32683","url":"https://www.suse.com/security/cve/CVE-2023-32683"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1212055 for CVE-2023-32683","url":"https://bugzilla.suse.com/1212055"}],"title":"SUSE CVE CVE-2023-32683","tracking":{"current_release_date":"2025-03-15T06:18:17Z","generator":{"date":"2023-06-07T02:23:29Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2023-32683","initial_release_date":"2023-06-07T02:23:29Z","revision_history":[{"date":"2023-06-07T02:23:29Z","number":"2","summary":"Current version"},{"date":"2023-07-09T01:47:59Z","number":"3","summary":"Current version"},{"date":"2025-01-01T02:04:58Z","number":"4","summary":"Current version"},{"date":"2025-02-14T06:25:33Z","number":"5","summary":"Current version"},{"date":"2025-02-16T06:18:40Z","number":"6","summary":"Current version"},{"date":"2025-03-15T06:18:17Z","number":"7","summary":"Current version"}],"status":"interim","version":"7"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"openSUSE Tumbleweed","product":{"name":"openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed","product_identification_helper":{"cpe":"cpe:/o:opensuse:tumbleweed"}}},{"category":"product_version","name":"matrix-synapse-1.85.2-1.1","product":{"name":"matrix-synapse-1.85.2-1.1","product_id":"matrix-synapse-1.85.2-1.1","product_identification_helper":{"cpe":"cpe:2.3:a:matrix:synapse:1.85.2:*:*:*:*:*:*:*","purl":"pkg:rpm/suse/matrix-synapse@1.85.2-1.1"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"matrix-synapse-1.85.2-1.1 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:matrix-synapse-1.85.2-1.1"},"product_reference":"matrix-synapse-1.85.2-1.1","relates_to_product_reference":"openSUSE Tumbleweed"}]},"vulnerabilities":[{"cve":"CVE-2023-32683","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2023-32683"}],"notes":[{"category":"general","text":"Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed or image URL can bypass the `url_preview_url_blacklist` setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the `url_preview_ip_range_blacklist` setting (by default this only allows public IPs) and by the limited information returned to the client: 1. For discovered oEmbed URLs, any non-JSON response or a JSON response which includes non-oEmbed information is discarded. 2. For discovered image URLs, any non-image response is discarded. Systems which have URL preview disabled (via the `url_preview_enabled` setting) or have not configured a `url_preview_url_blacklist` are not affected. This issue has been addressed in version 1.85.0. Users are advised to upgrade. User unable to upgrade may also disable URL previews.","title":"CVE description"}],"product_status":{"recommended":["openSUSE Tumbleweed:matrix-synapse-1.85.2-1.1"]},"references":[{"category":"external","summary":"CVE-2023-32683","url":"https://www.suse.com/security/cve/CVE-2023-32683"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1212055 for CVE-2023-32683","url":"https://bugzilla.suse.com/1212055"}],"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":["openSUSE Tumbleweed:matrix-synapse-1.85.2-1.1"]}],"scores":[{"cvss_v3":{"baseScore":3.5,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"products":["openSUSE Tumbleweed:matrix-synapse-1.85.2-1.1"]}],"threats":[{"category":"impact","date":"2023-06-06T12:15:08Z","details":"low"}],"title":"CVE-2023-32683"}]}