关键漏洞信息 漏洞标题 Potential heap-based buffer overflow when attempting to convert multiband TIFF input to HEIF output 严重性 等级: High (7.0/10) CVE ID: CVE-2025-29769 弱点类型: CWE-122 影响范围 受影响版本: = 8.16.1 描述与影响 The operation could incorrectly determine the presence of an alpha channel in an input when it was not possible to determine the colour interpretation, known internally within libvips as "multiband". There aren't many ways to create a "multiband" input, but it is possible with a well-crafted TIFF image. If a "multiband" TIFF input image had 4 channels and HEIF-based output was requested, this led to libvips creating a 3 channel HEIF image without an alpha channel but then attempting to write 4 channels of data. This caused a heap buffer overflow, which could crash the process. 修复措施 补丁: 9ab6784 解决方案 A possible workaround for users of libvips prior to version 8.16.1 is to block the operation via , which is available in most language bindings. 参考链接 https://issues.oss-fuzz.com/issues/396460413 #4392 #4394