CVE-2023-2804— libjpeg-turbo 缓冲区错误漏洞

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A heap-based buffer overflow issue was discovered in libjpeg-turbo in h2v2_merged_upsample_internal() function of jdmrgext.c file. The vulnerability can only be exploited with 12-bit data precision for which the range of the sample data type exceeds the valid sample range, hence, an attacker could craft a 12-bit lossless JPEG image that contains out-of-range 12-bit samples. An application attempting to decompress such image using merged upsampling would lead to segmentation fault or buffer overflows, causing an application to crash.

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堆缓冲区溢出

libjpeg-turbo 缓冲区错误漏洞

libjpeg-turbo是一个应用软件。提供一个JPEG图像编解码器，它使用SIMD指令来加速x86，x86-64，Arm，PowerPC和MIPS系统上的基线JPEG压缩和解压缩，以及x86，x86-64和Arm系统上的渐进JPEG压缩。 libjpeg-turbo存在安全漏洞，该漏洞源于h2v2_merged_upsample_internal()中/libjpeg-turbo/jdmrgext.c:126处存在堆的缓冲区溢出。

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