• 公告ID (KylinSec-SA-2024-1609)

摘要:

Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the KeyTrap issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.

安全等级: Low

公告ID: KylinSec-SA-2024-1609

发布日期: 2024年5月27日

关联CVE: CVE-2023-50387  

  • 详细介绍

1. 漏洞描述

   

Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the KeyTrap issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2023-50387 KY3.4-4A dhcp Unaffected
CVE-2023-50387 KY3.4-5 dhcp Unaffected
CVE-2023-50387 KY3.5.1 dhcp Unaffected
CVE-2023-50387 KY3.5.2 dhcp Unaffected
CVE-2023-50387 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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