CVE-2023-21876

一、漏洞信息
 漏洞编号：[CVE-2023-21876](https://nvd.nist.gov/vuln/detail/CVE-2023-21876)
 漏洞归属组件：[mysql](https://gitee.com/src-openeuler/mysql)
 漏洞归属的版本：8.0.17,8.0.23,8.0.24,8.0.26,8.0.27,8.0.28,8.0.29,8.0.30,8.0.35
 CVSS V3.0分值：
  BaseScore：4.9 Medium
  Vector：CVSS：3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).  Supported versions that are affected are 8.0.31 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
 漏洞公开时间：2023-01-18 08:15:15
 漏洞创建时间：2023-01-25 17:10:30
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2023-21876
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| secalert_us.oracle.com | https://www.oracle.com/security-alerts/cpujan2023.html |  |
| redhat_bugzilla | https://www.oracle.com/security-alerts/cpujan2023.html#AppendixMSQL | https://bugzilla.redhat.com/show_bug.cgi?id=2162283 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:1102 | https://bugzilla.redhat.com/show_bug.cgi?id=2162283 |
| redhat_bugzilla | https://access.redhat.com/security/cve/cve-2023-21876 | https://bugzilla.redhat.com/show_bug.cgi?id=2162283 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:2621 | https://bugzilla.redhat.com/show_bug.cgi?id=2162283 |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-21876 | https://ubuntu.com/security/CVE-2023-21876 |
| ubuntu | https://www.oracle.com/security-alerts/cpujan2023.html#AppendixMSQL | https://ubuntu.com/security/CVE-2023-21876 |
| ubuntu | https://ubuntu.com/security/notices/USN-5823-1 | https://ubuntu.com/security/CVE-2023-21876 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2023-21876 | https://ubuntu.com/security/CVE-2023-21876 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2023-21876 | https://ubuntu.com/security/CVE-2023-21876 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2023-21876 | https://ubuntu.com/security/CVE-2023-21876 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2023-21876 |
| oracle |  | https://www.oracle.com/security-alerts/cpujan2023.html |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2023-21876 |
| cve_search |  | https://www.oracle.com/security-alerts/cpujan2023.html |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2023-21876 | https://explore.alas.aws.amazon.com/CVE-2023-21876.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-21876 | https://explore.alas.aws.amazon.com/CVE-2023-21876.html |
| nvd | https://www.oracle.com/security-alerts/cpujan2023.html |  |
| redhat | https://access.redhat.com/security/cve/CVE-2023-21876 |  |
| nvd | https://www.oracle.com/security-alerts/cpujan2023.html |  |

</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:
  其它
 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://www.oracle.com/security-alerts/cpujan2023.html |  | nvd |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
          当前版本受影响，在8.0.35版本修复    
 openEuler评分：
  4.9
 Vector：CVSS：3.0/AV:N/AC:L/PR:H/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-20.03-LTS-SP4(8.0.28):受影响
2.openEuler-22.03-LTS-SP1(8.0.37):受影响
3.openEuler-22.03-LTS-SP3(8.0.37):受影响
4.master(8.0.27):不受影响
5.openEuler-24.03-LTS(8.0.35):不受影响
6.openEuler-24.03-LTS-Next(8.0.37):不受影响
7.openEuler-22.03-LTS-SP4(8.0.37):不受影响

修复是否涉及abi变化(是/否)：
  1.master(8.0.27):否
2.openEuler-20.03-LTS-SP4(8.0.28):否
3.openEuler-22.03-LTS-SP1(8.0.37):否
4.openEuler-22.03-LTS-SP3(8.0.37):否
5.openEuler-24.03-LTS(8.0.35):否
6.openEuler-24.03-LTS-Next(8.0.37):否
7.openEuler-22.03-LTS-SP4(8.0.37):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2071

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