漏洞信息
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Vulnerability Title
libheif Has Heap Buffer Overflow in `Track::get_next_sample_raw_data()` -- OOB Chunk Vector Access
Vulnerability Description
libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, `Track::init_sample_timing_table()` in `libheif/sequences/track.cc` stores an out-of-bounds chunk index (`m_chunks.size()`) into `m_presentation_timeline` when the number of chunks defined in the `stco` box is less than the number of samples in `stsz`. A subsequent call to `heif_track_get_next_raw_sequence_sample()` reads `m_chunks[chunk_idx]` with that OOB index, causing a heap-buffer-overflow. Version 1.22.0 fixes the issue.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Vulnerability Type
跨界内存读
Vulnerability Title
strukturag libheif 缓冲区错误漏洞
Vulnerability Description
strukturag libheif是strukturag的图像编解码库。 strukturag libheif 1.22.0之前版本存在缓冲区错误漏洞,该漏洞源于`Track::init_sample_timing_table()`函数在`stco`块中定义的块数量少于`stsz`中的样本数量时,将越界块索引存储到`m_presentation_timeline`中,导致后续调用`heif_track_get_next_raw_sequence_sample()`时使用该越界索引读取数据,从而造成堆缓冲
CVSS Information
N/A
Vulnerability Type
N/A