| Title | Bento4 <=1.6.0-641 Memory Corruption |
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| Description | A heap-buffer-overflow vulnerability was found in AP4_Dac4Atom DSI v1 parsing in Ap4Dac4Atom.cpp. A crafted MP4 file with a dac4 atom containing a large n_presentations value (up to 511) causes AP4_BitReader::SkipBits() to read far beyond the heap-allocated buffer. This leads to out-of-bounds read (CWE-125), causing potential information disclosure or denial of service. |
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| Source | ⚠️ https://github.com/axiomatic-systems/Bento4/issues/1059 |
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| User | breakingbad (UID 96046) |
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| Submission | 03/15/2026 16:28 (23 days ago) |
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| Moderation | 03/31/2026 16:09 (16 days later) |
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| Status | Accepted |
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| VulDB entry | 354387 [Axiomatic Bento4 up to 1.6.0-641 DSI v1 Parser Ap4Dac4Atom.cpp AP4_BitReader::SkipBits n_presentations heap-based overflow] |
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| Points | 19 |
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