漏洞信息
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Vulnerability Title
Information Leak of Memory in getimagesize
Vulnerability Description
In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, the getimagesize() function may leak uninitialized heap memory into the APPn segments (e.g., APP1) when reading images in multi-chunk mode (such as via php://filter). This occurs due to a bug in php_read_stream_all_chunks() that overwrites the buffer without advancing the pointer, leaving tail bytes uninitialized. This may lead to information disclosure of sensitive heap data and affect the confidentiality of the target server.
CVSS Information
N/A
Vulnerability Type
跨界内存读
Vulnerability Title
PHP 安全漏洞
Vulnerability Description
PHP是PHP开源的一种在服务器端执行的脚本语言。 PHP 8.1.34之前版本、8.2.30之前版本、8.3.29之前版本、8.4.16之前版本和8.5.1之前版本存在安全漏洞，该漏洞源于getimagesize函数在多块模式下可能泄露未初始化的堆内存，可能导致信息泄露。
CVSS Information
N/A
Vulnerability Type
N/A