Vulnerability Information
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
A stack use-after-return flaw in SIG(0) handling code may enable ACL bypass
Vulnerability Description
A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Vulnerability Type
返回栈上的变量地址
Vulnerability Title
ISC BIND 9 安全漏洞
Vulnerability Description
ISC BIND 9是ISC组织的一个域名系统软件。 ISC BIND 9 9.20.0至9.20.20版本、9.21.0至9.21.19版本和9.20.9-S1至9.20.20-S1版本存在安全漏洞，该漏洞源于处理使用SIG(0)签名的DNS查询时存在释放后重用，可能导致访问控制列表错误匹配IP地址。
CVSS Information
N/A
Vulnerability Type
N/A