{"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-2023-42453","title":"Title"},{"category":"description","text":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Users were able to forge read receipts for any event (if they knew the room ID and event ID). Note that the users were not able to view the events, but simply mark it as read. This could be confusing as clients will show the event as read by the user, even if they are not in the room. This issue has been patched in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","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-2023-42453","url":"https://www.suse.com/security/cve/CVE-2023-42453"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1215757 for CVE-2023-42453","url":"https://bugzilla.suse.com/1215757"}],"title":"SUSE CVE CVE-2023-42453","tracking":{"current_release_date":"2025-03-15T06:09:53Z","generator":{"date":"2023-09-28T01:44:53Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2023-42453","initial_release_date":"2023-09-28T01:44:53Z","revision_history":[{"date":"2023-09-28T01:44:53Z","number":"2","summary":"Current version"},{"date":"2023-09-29T01:47:33Z","number":"3","summary":"Current version"},{"date":"2025-01-01T01:55:07Z","number":"4","summary":"Current version"},{"date":"2025-02-14T06:14:21Z","number":"5","summary":"Current version"},{"date":"2025-02-16T06:07:27Z","number":"6","summary":"Current version"},{"date":"2025-03-15T06:09:53Z","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-1.93.0-1.1","product":{"name":"matrix-synapse-1.93.0-1.1","product_id":"matrix-synapse-1.93.0-1.1","product_identification_helper":{"cpe":"cpe:2.3:a:matrix:synapse:1.93.0:*:*:*:*:*:*:*","purl":"pkg:rpm/suse/matrix-synapse@1.93.0-1.1"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"matrix-synapse-1.93.0-1.1 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:matrix-synapse-1.93.0-1.1"},"product_reference":"matrix-synapse-1.93.0-1.1","relates_to_product_reference":"openSUSE Tumbleweed"}]},"vulnerabilities":[{"cve":"CVE-2023-42453","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2023-42453"}],"notes":[{"category":"general","text":"Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Users were able to forge read receipts for any event (if they knew the room ID and event ID). Note that the users were not able to view the events, but simply mark it as read. This could be confusing as clients will show the event as read by the user, even if they are not in the room. This issue has been patched in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.","title":"CVE description"}],"product_status":{"recommended":["openSUSE Tumbleweed:matrix-synapse-1.93.0-1.1"]},"references":[{"category":"external","summary":"CVE-2023-42453","url":"https://www.suse.com/security/cve/CVE-2023-42453"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1215757 for CVE-2023-42453","url":"https://bugzilla.suse.com/1215757"}],"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-1.93.0-1.1"]}],"scores":[{"cvss_v3":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"products":["openSUSE Tumbleweed:matrix-synapse-1.93.0-1.1"]}],"threats":[{"category":"impact","date":"2023-09-27T11:00:15Z","details":"moderate"}],"title":"CVE-2023-42453"}]}