{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"critical"},"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-2024-53863","title":"Title"},{"category":"description","text":"Synapse is an open-source Matrix homeserver. In Synapse versions before 1.120.1, enabling the dynamic_thumbnails option or processing a specially crafted request could trigger the decoding and thumbnail generation of uncommon image formats, potentially invoking external tools like Ghostscript for processing. This significantly expands the attack surface in a historically vulnerable area, presenting a risk that far outweighs the benefit, particularly since these formats are rarely used on the open web or within the Matrix ecosystem. Synapse 1.120.1 addresses the issue by restricting thumbnail generation to images in the following widely used formats: PNG, JPEG, GIF, and WebP. This vulnerability is fixed in 1.120.1.","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-2024-53863","url":"https://www.suse.com/security/cve/CVE-2024-53863"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1234110 for CVE-2024-53863","url":"https://bugzilla.suse.com/1234110"}],"title":"SUSE CVE CVE-2024-53863","tracking":{"current_release_date":"2025-08-26T23:26:23Z","generator":{"date":"2024-12-04T03:48:50Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2024-53863","initial_release_date":"2024-12-04T03:48:50Z","revision_history":[{"date":"2024-12-04T03:48:50Z","number":"2","summary":"Current version"},{"date":"2024-12-05T00:15:49Z","number":"3","summary":"Current version"},{"date":"2025-01-01T00:22:42Z","number":"4","summary":"Current version"},{"date":"2025-02-14T04:03:41Z","number":"5","summary":"Current version"},{"date":"2025-02-16T03:56:01Z","number":"6","summary":"Current version"},{"date":"2025-03-15T04:14:04Z","number":"7","summary":"Current version"},{"date":"2025-08-26T23:26:23Z","number":"8","summary":"Current version"}],"status":"interim","version":"8"}},"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-1.120.2-1.1","product":{"name":"matrix-synapse-1.120.2-1.1","product_id":"matrix-synapse-1.120.2-1.1","product_identification_helper":{"cpe":"cpe:2.3:a:matrix:synapse:1.120.2:*:*:*:*:*:*:*","purl":"pkg:rpm/suse/matrix-synapse@1.120.2-1.1"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"matrix-synapse-1.120.2-1.1 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:matrix-synapse-1.120.2-1.1"},"product_reference":"matrix-synapse-1.120.2-1.1","relates_to_product_reference":"openSUSE Tumbleweed"}]},"vulnerabilities":[{"cve":"CVE-2024-53863","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2024-53863"}],"notes":[{"category":"general","text":"Synapse is an open-source Matrix homeserver. In Synapse versions before 1.120.1, enabling the dynamic_thumbnails option or processing a specially crafted request could trigger the decoding and thumbnail generation of uncommon image formats, potentially invoking external tools like Ghostscript for processing. This significantly expands the attack surface in a historically vulnerable area, presenting a risk that far outweighs the benefit, particularly since these formats are rarely used on the open web or within the Matrix ecosystem. Synapse 1.120.1 addresses the issue by restricting thumbnail generation to images in the following widely used formats: PNG, JPEG, GIF, and WebP. This vulnerability is fixed in 1.120.1.","title":"CVE description"}],"product_status":{"recommended":["openSUSE Tumbleweed:matrix-synapse-1.120.2-1.1"]},"references":[{"category":"external","summary":"CVE-2024-53863","url":"https://www.suse.com/security/cve/CVE-2024-53863"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1234110 for CVE-2024-53863","url":"https://bugzilla.suse.com/1234110"}],"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-1.120.2-1.1"]}],"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":["openSUSE Tumbleweed:matrix-synapse-1.120.2-1.1"]}],"threats":[{"category":"impact","date":"2024-12-03T17:45:09Z","details":"critical"}],"title":"CVE-2024-53863"}]}