一、漏洞信息
漏洞编号：CVE-2025-21518
漏洞归属组件：mysql5
漏洞归属的版本：5.7.21,5.7.34,5.7.38,5.7.39,5.7.43,5.7.44
CVSS V3.0分值：
BaseScore：6.5 Medium
Vector：CVSS：3.0/AV:N/AC:L/PR:L/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 8.0.40 and prior, 8.4.3 and prior and 9.1.0 and prior. Easily exploitable vulnerability allows low 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
漏洞公开时间：2025-01-22 05:15:17
漏洞创建时间：2025-01-22 08:26:27
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2025-21518

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：

二、漏洞分析结构反馈
影响性分析说明：

openEuler评分：
6.5
Vector：CVSS：3.0/AV:N/AC:L/PR:L/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(5.7.43):
2.openEuler-20.03-LTS-SP4(5.7.44):
3.openEuler-22.03-LTS-SP3(5.7.44):
4.openEuler-22.03-LTS-SP4(5.7.44):
5.openEuler-24.03-LTS(5.7.43):
6.openEuler-24.03-LTS-Next(5.7.43):
7.openEuler-24.03-LTS-SP1:

修复是否涉及abi变化(是/否)：
1.master(5.7.43):
2.openEuler-20.03-LTS-SP4(5.7.44):
3.openEuler-22.03-LTS-SP3(5.7.44):
4.openEuler-22.03-LTS-SP4(5.7.44):
5.openEuler-24.03-LTS(5.7.43):
6.openEuler-24.03-LTS-Next(5.7.43):
7.openEuler-24.03-LTS-SP1:

原因说明：
1.master(5.7.43):
2.openEuler-20.03-LTS-SP4(5.7.44):
3.openEuler-22.03-LTS-SP3(5.7.44):
4.openEuler-22.03-LTS-SP4(5.7.44):
5.openEuler-24.03-LTS(5.7.43):
6.openEuler-24.03-LTS-Next(5.7.43):
7.openEuler-24.03-LTS-SP1: