Vulnerability Information
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Vulnerability Title
libheif has Potential Heap Buffer Over-Read
Vulnerability Description
libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that exercises the overlay image item path triggers a heap buffer over-read in `HeifPixelImage::overlay()`. The function computes a negative row length (likely from an unclipped overlay rectangle or invalid offsets), which then underflows when converted to `size_t` and is passed to `memcpy`, causing a very large read past the end of the source plane and a crash. Version 1.21.0 contains a patch. As a workaround, avoid decoding images using `iovl` overlay boxes.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Vulnerability Type
跨界内存读
Vulnerability Title
libheif 输入验证错误漏洞
Vulnerability Description
libheif是struktur开源的一款 ISO/IEC 23008-12:2017 HEIF 文件格式解码器和编码器。 libheif 1.21.0之前版本存在输入验证错误漏洞，该漏洞源于特制HEIF文件触发堆缓冲区过度读取，可能导致崩溃。
CVSS Information
N/A
Vulnerability Type
N/A