Libtheora: libtheora: denial of service or information disclosure via malformed avi file processing_CVE-2026-5673

{
    "lastseen": "",
    "description": "A flaw was found in libtheora. This heap-based out-of-bounds read vulnerability exists within the AVI (Audio Video Interleave) parser, specifically in the avi_parse_input_file() function. A local attacker could exploit this by tricking a user into opening a specially crafted AVI file containing a truncated header sub-chunk. This could lead to a denial-of-service (application crash) or potentially leak sensitive information from the heap.",
    "published": "2026-04-06T09:22:36.227Z",
    "modified": "2026-04-06T18:02:52.708Z",
    "type": "cve",
    "title": "Libtheora: libtheora: denial of service or information disclosure via malformed avi file processing",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-5673\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2455340\nhttps://github.com/xiph/theora/issues/24",
    "id": "CVE-2026-5673",
    "bulletinFamily": "",
    "cwe": [
        "CWE-125"
    ],
    "cvelist": null,
    "sourceData": "",
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    "cvss": {
        "score": 5.6,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Red Hat Enterprise Linux 10",
    "version": "",
    "vendor": "Red Hat",
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    "ai_score": 0
}