CVE-2022-31627— Heap buffer overflow in finfo_buffer
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I. Basic Information for CVE-2022-31627
Vulnerability Information
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Vulnerability Title
Heap buffer overflow in finfo_buffer
Source: NVD (National Vulnerability Database)
Vulnerability Description
In PHP versions 8.1.x below 8.1.8, when fileinfo functions, such as finfo_buffer, due to incorrect patch applied to the third party code from libmagic, incorrect function may be used to free allocated memory, which may lead to heap corruption.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放并不在堆上的内存
Source: NVD (National Vulnerability Database)
Vulnerability Title
PHP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHP是一种在服务器端执行的脚本语言。 PHP 8.1.x系列8.1.8 之前的版本存在安全漏洞，该漏洞源于可以通过 finfo_buffer 触发 PHP 的缓冲区溢出，攻击者利用该漏洞可以触发拒绝服务，并可能运行代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-31627
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- https://bugs.php.net/bug.php?id=81723x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220826-0008/x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2022-31627
IV. Related Vulnerabilities
Same product: PHP
Same vendor: PHP Group
Same weakness: CWE-590
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V. Comments for CVE-2022-31627
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