漏洞信息
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Vulnerability Title
Nmap - Integer Underflow in IPv6 Extension Header Parsing
Vulnerability Description
Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6_get_data_primitive (libnetutil/netutil.cc), so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a crafted IPv6 response with a truncated extension header can trigger out-of-bounds reads and a crash during raw IPv6 scans.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Vulnerability Type
整数下溢(超界折返)
Vulnerability Title
nmap 数字错误漏洞
Vulnerability Description
nmap是NMAP组织开源的一个用于网络发现与安全扫描的工具。 nmap 7.99及之前版本存在数字错误漏洞,该漏洞源于在ipv6_get_data_primitive(libnetutil/netutil.cc)中未将IPv6扩展标头遍历限制在捕获的数据包内,导致指针超出缓冲区且剩余长度计算下溢为较大值,可能使扫描目标或路径上的攻击者通过返回带有截断扩展标头的特制IPv6响应,在原始IPv6扫描期间触发越界读取和崩溃。
CVSS Information
N/A
Vulnerability Type
N/A