漏洞信息
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Vulnerability Title
OpenImageIO: Integer wraparound in bounds check of decode_pixel leads to out-of-bounds read in TGA paletted image decoder
Vulnerability Description
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, the bounds check in TGAInput::decode_pixel computes k + palbytespp as unsigned 32-bit arithmetic. When k = 0xFFFFFFFC and palbytespp = 4, the addition wraps to 0, which compares less than palette_alloc_size and passes the check. The subsequent palette access uses the unwrapped k (0xFFFFFFFC) as the index, reading ~4 GB past the start of the palette buffer — SEGV. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Vulnerability Type
跨界内存读
Vulnerability Title
OpenImageIO 缓冲区错误漏洞
Vulnerability Description
OpenImageIO是OpenImageIO开源的一个图像处理库。具有易于使用的界面和大量受支持的图像格式。 OpenImageIO 3.0.18.0之前版本和3.1.13.0之前版本存在缓冲区错误漏洞,该漏洞源于TGAInput::decode_pixel中边界检查计算k+palbytespp时使用无符号32位算术,当k=0xFFFFFFFC且palbytespp=4时加法回绕为0,导致后续调色板访问使用未回绕的k值,读取约4GB内存并触发段错误。
CVSS Information
N/A
Vulnerability Type
N/A