CVE-2023-5680— Cleaning an ECS-enabled cache may cause excessive CPU load
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I. Basic Information for CVE-2023-5680
Vulnerability Information
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Vulnerability Title
Cleaning an ECS-enabled cache may cause excessive CPU load
Source: NVD (National Vulnerability Database)
Vulnerability Description
If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. This issue affects BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
ISC BIND 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。 ISC BIND 9.11.3-S1 到 9.11.37-S1、9.16.8-S1 到 9.16.45-S1 以及 9.18.11-S1 到 9.18.21-S1版本存在安全漏洞，该漏洞源于如果解析器缓存存储了大量同名 ECS 记录，则清理该名称的缓存数据库节点可能会严重影响查询性能。
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-2023-5680
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Same Patch Batch · ISC · 2024-02-13 · 5 CVEs total
| CVE-2023-4408 | 7.5 HIGH | Parsing large DNS messages may cause excessive CPU load |
| CVE-2023-5517 | 7.5 HIGH | Querying RFC 1918 reverse zones may cause an assertion failure when "nxdomain-redirect" is |
| CVE-2023-5679 | 7.5 HIGH | Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolu |
| CVE-2023-6516 | 7.5 HIGH | Specific recursive query patterns may lead to an out-of-memory condition |
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Same vendor: ISC
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