• 公告ID (KylinSec-SA-2024-1605)

摘要:

The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers.This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-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.

安全等级: Low

公告ID: KylinSec-SA-2024-1605

发布日期: 2024年5月27日

关联CVE: CVE-2023-4408  

  • 详细介绍

1. 漏洞描述

   

The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers.This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-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.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2023-4408 KY3.4-4A dhcp Unaffected
CVE-2023-4408 KY3.4-5 dhcp Unaffected
CVE-2023-4408 KY3.5.1 dhcp Unaffected
CVE-2023-4408 KY3.5.2 dhcp Unaffected
CVE-2023-4408 V6 dhcp Unaffected

3. 影响组件

    无

4. 修复版本

    无

5. 修复方法

   无

6. 下载链接

    无
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