{"id":"DEBIAN-CVE-2026-53704","details":"A flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variable-name and variable-value pairs using re_skip_pascal_string() without validating that offsets remain within the mapped buffer. Additionally, the element count controlling the parsing loop is read from attacker-controlled data without validation, which can cause an infinite loop. A crafted RealMedia file can cause the application to crash, hang, or potentially read limited adjacent memory contents.","modified":"2026-09-09T09:00:11.106114670Z","published":"2026-06-15T20:16:33.697Z","upstream":["CVE-2026-53704"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-53704"}],"affected":[{"package":{"name":"gst-plugins-ugly1.0","ecosystem":"Debian:12","purl":"pkg:deb/debian/gst-plugins-ugly1.0?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22.0-2","1.22.0-2+deb12u1","1.22.0-2+deb12u2","1.22.1-1","1.22.10-1","1.22.3-1","1.22.3-2","1.22.4-1","1.22.5-1","1.22.6-1","1.22.7-1","1.22.8-1","1.22.9-1","1.23.1-1","1.23.2-1","1.23.90-1","1.24.0-1","1.24.1-1","1.24.10-1","1.24.11-1","1.24.12-1","1.24.2-1","1.24.3-1","1.24.4-1","1.24.5-1","1.24.6-1","1.24.7-1","1.24.8-1","1.24.9-1","1.25.1-1","1.25.50-1","1.25.50-2","1.25.90-1","1.25.90-2","1.26.0-1","1.26.1-1","1.26.10-1","1.26.2-1","1.26.3-1","1.26.3-2","1.26.3-3","1.26.3-4","1.26.4-1","1.26.5-1","1.26.5-2","1.26.6-1","1.26.7-1","1.26.8-1","1.26.9-1","1.27.1-1","1.27.2-1","1.27.50-1","1.27.50-2","1.27.90-1","1.28.0-1","1.28.1-1","1.28.2-1","1.28.3-1","1.28.4-1","1.28.5-1","1.28.6-1","1.28.7-1","1.29.1-1","1.29.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53704.json"}},{"package":{"name":"gst-plugins-ugly1.0","ecosystem":"Debian:13","purl":"pkg:deb/debian/gst-plugins-ugly1.0?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.26.10-1","1.26.3-4","1.26.3-4+deb13u1","1.26.4-1","1.26.5-1","1.26.5-2","1.26.6-1","1.26.7-1","1.26.8-1","1.26.9-1","1.27.1-1","1.27.2-1","1.27.50-1","1.27.50-2","1.27.90-1","1.28.0-1","1.28.1-1","1.28.2-1","1.28.3-1","1.28.4-1","1.28.5-1","1.28.6-1","1.28.7-1","1.29.1-1","1.29.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53704.json"}},{"package":{"name":"gst-plugins-ugly1.0","ecosystem":"Debian:14","purl":"pkg:deb/debian/gst-plugins-ugly1.0?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.28.4-1"}]}],"versions":["1.26.10-1","1.26.3-4","1.26.4-1","1.26.5-1","1.26.5-2","1.26.6-1","1.26.7-1","1.26.8-1","1.26.9-1","1.27.1-1","1.27.2-1","1.27.50-1","1.27.50-2","1.27.90-1","1.28.0-1","1.28.1-1","1.28.2-1","1.28.3-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53704.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"}]}