In libebml before 1.4.5, an integer overflow in MemIOCallback.cpp can occur when reading or writing. It may result in buffer overflows.
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"cna_assigner": "mitre"
}{
"cpe": "cpe:2.3:a:matroska:libebml:*:*:*:*:*:*:*:*",
"source": [
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],
"extracted_events": [
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"introduced": "0"
},
{
"fixed": "1.4.5"
}
]
}"2026-07-22T02:50:36Z"
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"source": "https://github.com/matroska-org/libebml/commit/1878e784321673561039a6a37076b2736f4dc98f",
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"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52339.json"