CVE-2023-6516

一、漏洞信息
 漏洞编号：[CVE-2023-6516](https://nvd.nist.gov/vuln/detail/CVE-2023-6516)
 漏洞归属组件：[bind](https://gitee.com/src-openeuler/bind)
 漏洞归属的版本：9.11.21,9.11.4,9.16.23,9.16.37
 CVSS V3.0分值：
  BaseScore：7.5 High
  Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  To keep its cache database efficient, `named` running as a recursive resolver occasionally attempts to clean up the database. It uses several methods, including some that are asynchronous: a small chunk of memory pointing to the cache element that can be cleaned up is first allocated and then queued for later processing. It was discovered that if the resolver is continuously processing query patterns triggering this type of cache-database maintenance, `named` may not be able to handle the cleanup events in a timely manner. This in turn enables the list of queued cleanup events to grow infinitely large over time, allowing the configured `max-cache-size` limit to be significantly exceeded.This issue affects BIND 9 versions 9.16.0 through 9.16.45 and 9.16.8-S1 through 9.16.45-S1.
 漏洞公开时间：2024-02-13 22:15:46
 漏洞创建时间：2024-02-13 22:25:01
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2023-6516
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| security-officer.isc.org | http://www.openwall.com/lists/oss-security/2024/02/13/1 |  |
| security-officer.isc.org | https://kb.isc.org/docs/cve-2023-6516 |  |
| security-officer.isc.org | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/ |  |
| security-officer.isc.org | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/ |  |
| security-officer.isc.org | https://security.netapp.com/advisory/ntap-20240503-0008/ |  |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:1647 | https://bugzilla.redhat.com/show_bug.cgi?id=2263911 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:1648 | https://bugzilla.redhat.com/show_bug.cgi?id=2263911 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:1781 | https://bugzilla.redhat.com/show_bug.cgi?id=2263911 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:1789 | https://bugzilla.redhat.com/show_bug.cgi?id=2263911 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:1800 | https://bugzilla.redhat.com/show_bug.cgi?id=2263911 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:1803 | https://bugzilla.redhat.com/show_bug.cgi?id=2263911 |
| ubuntu | https://kb.isc.org/docs/cve-2023-6516 | https://ubuntu.com/security/CVE-2023-6516 |
| ubuntu | https://ubuntu.com/security/notices/USN-6642-1 | https://ubuntu.com/security/CVE-2023-6516 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2023-6516 | https://ubuntu.com/security/CVE-2023-6516 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2023-6516 | https://ubuntu.com/security/CVE-2023-6516 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2023-6516 | https://ubuntu.com/security/CVE-2023-6516 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2023-6516 | https://ubuntu.com/security/CVE-2023-6516 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2023-6516 |
| bind |  | https://kb.isc.org/v1/docs/cve-2023-6516 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2023-6516 |
| cve_search |  | https://kb.isc.org/docs/cve-2023-6516 |
| cve_search |  | http://www.openwall.com/lists/oss-security/2024/02/13/1 |
| cve_search |  | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/ |
| cve_search |  | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/ |
| osv | https://security.netapp.com/advisory/ntap-20240503-0008/ | https://osv.dev/vulnerability/CVE-2023-6516 |
| osv | http://www.openwall.com/lists/oss-security/2024/02/13/1 | https://osv.dev/vulnerability/CVE-2023-6516 |
| osv | https://kb.isc.org/docs/cve-2023-6516 | https://osv.dev/vulnerability/CVE-2023-6516 |
| osv | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/ | https://osv.dev/vulnerability/CVE-2023-6516 |
| osv | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/ | https://osv.dev/vulnerability/CVE-2023-6516 |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2023-6516 | https://explore.alas.aws.amazon.com/CVE-2023-6516.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6516 | https://explore.alas.aws.amazon.com/CVE-2023-6516.html |
| snyk | https://github.com/isc-projects/bind9/releases/tag/v9.16.45 | https://security.snyk.io/vuln/SNYK-UNMANAGED-BIND-6252345 |
| snyk | https://kb.isc.org/docs/cve-2023-6516 | https://security.snyk.io/vuln/SNYK-UNMANAGED-BIND-6252345 |

</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  |
| ------- | -------- | ------- | -------- | --------- |
| bind9 |  | https://ftp.isc.org/isc/bind9/9.16.48/patches/0004-CVE-2023-6516.patch |  | ubuntu |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
            为了保持其缓存数据库的高效性，作为递归解析器运行的named进程会周期性地尝试清理数据库。它使用了几种方法，包括一些异步方法:首先分配一小块内存，指向可以清理的缓存元素，然后将其加入队列以便稍后处理。然而，发现如果解析器持续处理触发这种类型缓存数据库维护的查询模式，named可能无法及时处理清理事件。这反过来会导致待清理事件列表随时间无限增长，从而显著超出配置的max-cache-size限制。此问题影响BIND 9版本9.16.0至9.16.45和9.16.8-S1至9.16.45-S1。     
 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.openEuler-22.03-LTS(9.16.23):受影响
2.openEuler-22.03-LTS-Next(9.16.23):受影响
3.openEuler-22.03-LTS-SP1(9.16.23):受影响
4.openEuler-22.03-LTS-SP2(9.16.23):受影响
5.openEuler-22.03-LTS-SP3(9.16.23):受影响
6.master(9.18.21):不受影响
7.openEuler-20.03-LTS-SP1(9.11.21):不受影响
8.openEuler-20.03-LTS-SP4(9.11.21):不受影响
9.openEuler-24.03-LTS(9.18.21):不受影响
10.openEuler-24.03-LTS-Next(9.18.21):
11.openEuler-22.03-LTS-SP4(9.16.23):

修复是否涉及abi变化(是/否)：
  1.master(9.18.21):否
2.openEuler-20.03-LTS-SP1(9.11.21):否
3.openEuler-20.03-LTS-SP4(9.11.21):否
4.openEuler-22.03-LTS(9.16.23):否
5.openEuler-22.03-LTS-Next(9.16.23):否
6.openEuler-22.03-LTS-SP1(9.16.23):否
7.openEuler-22.03-LTS-SP2(9.16.23):否
8.openEuler-22.03-LTS-SP3(9.16.23):否
9.openEuler-24.03-LTS(9.18.21):否
10.openEuler-24.03-LTS-Next(9.18.21):
11.openEuler-22.03-LTS-SP4(9.16.23):

src-openEuler/bind
Closed

Content Risk Flag

Comments (19)

src-openEuler/bindClosed .gitee-modal { width: 500px !important; }

Content Risk Flag

CVE-2023-6516

Comments (19)

Search

src-openEuler/bind
Closed