漏洞信息
尽管我们使用了先进的大模型技术,但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性,但请您根据实际情况进行核实和判断。
Vulnerability Title
FFmpeg LCL/ZLIB Video Decoder Information Disclosure via lcldec.c
Vulnerability Description
FFmpeg through 8.1.2, fixed in commit 8670835, contains an information disclosure vulnerability in the LCL/ZLIB video decoder that allows attackers to expose uninitialized heap memory by supplying a valid zlib stream that inflates to fewer bytes than the expected frame size. The zlib_decomp() function in lcldec.c treats short decompression as non-fatal and continues to the RGB24 conversion path, which copies a full frame's worth of rows from the allocation buffer using original frame dimensions, causing uninitialized heap contents including pointer-derived allocator bytes to be copied into the attacker-observable AVFrame output and potentially defeating ASLR in long-lived media processing services.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Vulnerability Type
对未经初始化资源的使用
Vulnerability Title
FFmpeg 资源管理错误漏洞
Vulnerability Description
FFmpeg是FFmpeg组织开源的一套可录制、转换以及流化音视频的完整解决方案。 FFmpeg 8.1.2及之前版本存在资源管理错误漏洞,该漏洞源于LCL/ZLIB视频解码器中的zlib_decomp()函数将短解压缩视为非致命并继续RGB24转换路径,导致未初始化堆内存内容被复制到攻击者可观察的AVFrame输出中,可能造成信息泄露并绕过ASLR。
CVSS Information
N/A
Vulnerability Type
N/A