| タイトル | strukturag libheif 1.21.2 Out-of-Bounds Read |
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| 説明 | This vulnerability is a sequence–track consistency validation flaw in libheif. A crafted file can declare more samples in stsz/stts than are actually covered by stsc. Track::load fails to reject this inconsistent state, allowing it to propagate. As a result, Track::init_sample_timing_table may compute an out-of-range chunkIdx, and Track_Visual::decode_next_image_sample subsequently dereferences m_chunks[chunkIdx] without proper bounds checking. This leads to a heap out-of-bounds read and a process crash (DoS). |
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| ソース | ⚠️ https://github.com/strukturag/libheif/issues/1715 |
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| ユーザー | Niebelungen (UID 95430) |
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| 送信 | 2026年02月24日 11:34 (7 月 ago) |
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| モデレーション | 2026年03月11日 13:03 (15 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 350382 [strukturag libheif 迄 1.21.2 stsz/stts track.cc Track::load 情報漏えい] |
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| ポイント | 20 |
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