漏洞信息
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Vulnerability Title
libssh2 - Integer Overflow in publickey Subsystem Attribute Allocation
Vulnerability Description
libssh2 through 1.11.1 reads an attacker-controlled 32-bit attribute count from a publickey-subsystem response and uses it in the allocation num_attrs * sizeof(libssh2_publickey_attribute) without bounds checking, so on 32-bit platforms the multiplication overflows to an undersized buffer. A malicious SSH server can then drive the attribute-parsing loop to write past the allocation, causing a heap buffer overflow in a connecting libssh2 client.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Vulnerability Type
整数溢出或超界折返
Vulnerability Title
libssh2 数字错误漏洞
Vulnerability Description
libssh2是libssh2团队开源的一款实现SSH2协议的客户端C库。 libssh2 1.11.1及之前版本存在数字错误漏洞,该漏洞源于整数溢出,在32位平台上乘法溢出导致缓冲区分配不足,可能导致恶意SSH服务器驱动属性解析循环越界写入,造成堆缓冲区溢出。
CVSS Information
N/A
Vulnerability Type
N/A