Gửi #766431: strukturag libheif 1.21.2 Out-of-Bounds Readthông tin

tiêu đềstrukturag libheif 1.21.2 Out-of-Bounds Read
Mô tảThis 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).
Nguồn⚠️ https://github.com/strukturag/libheif/issues/1715
Người dùng
 Niebelungen (UID 95430)
Đệ trình24/02/2026 11:34 (cách đây 7 các tháng)
Kiểm duyệt11/03/2026 13:03 (15 days later)
Trạng tháiđược chấp nhận
Mục VulDB350382 [strukturag libheif đến 1.21.2 stsz/stts track.cc Track::load tiết lộ thông tin]
điểm20

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