CVE-2024-33655

一、漏洞信息
 漏洞编号：[CVE-2024-33655](https://nvd.nist.gov/vuln/detail/CVE-2024-33655)
 漏洞归属组件：[unbound](https://gitee.com/src-openeuler/unbound)
 漏洞归属的版本：1.10.1,1.11.0,1.13.2,1.17.0,1.17.1
 CVSS V3.0分值：
  BaseScore：7.5 High
  Vector：CVSS：3.0/
 漏洞简述：
  The DNS protocol in RFC 1035 and updates allows remote attackers to cause a denial of service (resource consumption) by arranging for DNS queries to be accumulated for seconds, such that responses are later sent in a pulsing burst (which can be considered traffic amplification in some cases), aka the  DNSBomb  issue.
 漏洞公开时间：2024-06-07 01:15:51
 漏洞创建时间：2024-05-02 16:46:07
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-33655
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| cve.mitre.org | https://alas.aws.amazon.com/ALAS-2024-1934.html |  |
| cve.mitre.org | https://datatracker.ietf.org/doc/html/rfc1035 |  |
| cve.mitre.org | https://github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3de |  |
| cve.mitre.org | https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-120 |  |
| cve.mitre.org | https://gitlab.isc.org/isc-projects/bind9/-/issues/4398 |  |
| cve.mitre.org | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3TBXPRJ2Q235YUZKYDRWOSYNDFBJQWJ3/ |  |
| cve.mitre.org | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QITY2QBX2OCBTZIXD2A5ES62STFIA4AL/ |  |
| cve.mitre.org | https://meterpreter.org/researchers-uncover-dnsbomb-a-new-pdos-attack-exploiting-legitimate-dns-features/ |  |
| cve.mitre.org | https://nlnetlabs.nl/downloads/unbound/CVE-2024-33655.txt |  |
| cve.mitre.org | https://nlnetlabs.nl/projects/unbound/security-advisories/ |  |
| cve.mitre.org | https://sp2024.ieee-security.org/accepted-papers.html |  |
| cve.mitre.org | https://www.isc.org/blogs/2024-dnsbomb/ |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-33655 | https://bugzilla.suse.com/show_bug.cgi?id=1224102 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2279942 | https://bugzilla.suse.com/show_bug.cgi?id=1224102 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-33655 |
| oracle |  | https://www.oracle.com/security-alerts/bulletinjul2024.html |
| cve_search |  | https://datatracker.ietf.org/doc/html/rfc1035 |
| cve_search |  | https://nlnetlabs.nl/projects/unbound/security-advisories/ |
| cve_search |  | https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-120 |
| cve_search |  | https://www.isc.org/blogs/2024-dnsbomb/ |
| cve_search |  | https://nlnetlabs.nl/downloads/unbound/CVE-2024-33655.txt |
| cve_search |  | https://github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3de |
| cve_search |  | https://alas.aws.amazon.com/ALAS-2024-1934.html |
| cve_search |  | https://meterpreter.org/researchers-uncover-dnsbomb-a-new-pdos-attack-exploiting-legitimate-dns-features/ |
| cve_search |  | https://sp2024.ieee-security.org/accepted-papers.html |
| cve_search |  | https://gitlab.isc.org/isc-projects/bind9/-/issues/4398 |
| mageia |  | http://advisories.mageia.org/MGASA-2024-0203.html |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2024-33655 | https://explore.alas.aws.amazon.com/CVE-2024-33655.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-33655 | https://explore.alas.aws.amazon.com/CVE-2024-33655.html |
| snyk | https://github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3de | https://security.snyk.io/vuln/SNYK-UNMANAGED-UNBOUND-6828866 |
| snyk | https://www.nlnetlabs.nl/news/2024/May/08/unbound-1.20.0-released/ | https://security.snyk.io/vuln/SNYK-UNMANAGED-UNBOUND-6828866 |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3de |  | cve.mitre.org |
|  |  | https://github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3de |  | snyk |
|  |  | https://github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3de |  | debian |
|  |  | https://www.nlnetlabs.nl/downloads/unbound/patch_CVE-2024-33655.diff |  | unbound |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
        此漏洞称为DNSBomb，是一种脉冲拒绝服务攻击 (PDOS)，它利用查询速率限制、查询超时和最大响应大小设置等功能，使用恶意设计的权限和易受攻击的递归解析器创建定时响应洪流，据unbound上游社区表述，unbound本身不易受影响，但是可作为攻击者攻击的工具参与到攻击中。   
 openEuler评分：
  7.5
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.master(1.17.1):受影响
2.openEuler-20.03-LTS-SP4(1.11.0):受影响
3.openEuler-22.03-LTS-SP1(1.13.2):受影响
4.openEuler-22.03-LTS-SP3(1.13.2):受影响
5.openEuler-22.03-LTS-SP4(1.13.2):受影响
6.openEuler-24.03-LTS(1.17.1):受影响
7.openEuler-24.03-LTS-Next(1.17.1):受影响

修复是否涉及abi变化(是/否)：
  1.master(1.17.1):是
2.openEuler-20.03-LTS-SP4(1.11.0):是
3.openEuler-22.03-LTS-SP1(1.13.2):是
4.openEuler-22.03-LTS-SP3(1.13.2):是
5.openEuler-22.03-LTS-SP4(1.13.2):是
6.openEuler-24.03-LTS(1.17.1):是
7.openEuler-24.03-LTS-Next(1.17.1):是

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2234

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