Vulnerability Information
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Vulnerability Title
Crypt::URandom versions from 0.41 before 0.55 for Perl is vulnerable to a heap buffer overflow in the XS function crypt_urandom_getrandom()
Vulnerability Description
Crypt::URandom versions from 0.41 before 0.55 for Perl is vulnerable to a heap buffer overflow in the XS function crypt_urandom_getrandom(). The function does not validate that the length parameter is non-negative. If a negative value (e.g. -1) is supplied, the expression length + 1u causes an integer wraparound, resulting in a zero-byte allocation. The subsequent call to getrandom(data, length, GRND_NONBLOCK) passes the original negative value, which is implicitly converted to a large unsigned value (typically SIZE_MAX). This can result in writes beyond the allocated buffer, leading to heap memory corruption and application crash (denial of service). In common usage, the length argument is typically hardcoded by the caller, which reduces the likelihood of attacker-controlled exploitation. Applications that pass untrusted input to this parameter may be affected.
CVSS Information
N/A
Vulnerability Type
堆缓冲区溢出
Vulnerability Title
Crypt::URandom 安全漏洞
Vulnerability Description
Crypt::URandom是DDICK个人开发者的一个加密Perl库。 Crypt::URandom 0.55之前版本存在安全漏洞，该漏洞源于XS函数crypt_urandom_getrandom()存在堆缓冲区溢出，该函数未验证长度参数为非负值，可能导致整数环绕、堆内存损坏和应用程序崩溃。
CVSS Information
N/A
Vulnerability Type
N/A