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{"acknowledgement": "Red Hat would like to thank Bruno Fournier for reporting this issue.", "bugzilla": {"description": "gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: out-of-bounds write in gst_h266_parser_parse_dci() due to off-by-one array bound check", "id": "2541471", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541471"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path."], "mitigation": {"lang": "en:us", "value": "No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability."}, "name": "CVE-2026-100229", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "gstreamer1-plugins-bad-free", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "gstreamer1-plugins-bad-free", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gstreamer1-plugins-bad-free", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "gstreamer1-plugins-bad-free", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-10-14T08:10:08Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-100229\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-100229"], "statement": "This vulnerability is rated as Low severity because exploitation requires a third-party application to call the gst_h266_parser_parse_dci() public API with attacker-controlled H.266 DCI data, and no in-tree GStreamer element currently invokes this function. The H.266 parser was introduced in GStreamer 1.26. RHEL 7 (GStreamer 1.x), RHEL 8 (1.16.x), and RHEL 9 (1.22.x) do not contain H.266 support and are not affected.", "threat_severity": "Low"}

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