CVE-2021-2471

一、漏洞信息
 漏洞编号：[CVE-2021-2471](https://nvd.nist.gov/vuln/detail/CVE-2021-2471)
 漏洞归属组件：[mysql-connector-java](https://gitee.com/src-openeuler/mysql-connector-java)
 漏洞归属的版本：5.1.48
 CVSS V3.0分值：
  BaseScore：5.9 Medium
  Vector：CVSS：3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
 漏洞简述：
  Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.26 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors. CVSS 3.1 Base Score 5.9 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H).
 漏洞公开时间：2021-10-20 19:16
 漏洞创建时间：2024-01-10 14:24:15
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2021-2471
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| MISC | https://www.oracle.com/security-alerts/cpuoct2021.html |  |
| MISC | https://www.oracle.com/security-alerts/cpuapr2022.html |  |
| nvd | https://access.redhat.com/security/cve/CVE-2021-2471 |  |
| suse_bugzilla | https://www.oracle.com/security-alerts/cpuoct2021.html |  |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2020583 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-2471 |  |
| suse_bugzilla | https://www.oracle.com/security-alerts/cpuoct2021.html#CVE-2021-2471 |  |
| suse_bugzilla | https://www.oracle.com/security-alerts/cpuoct2021.html |  |
| suse_bugzilla | https://github.com/DrunkenShells/CVE-2021-2471

Here is the solution from Oracle: setting setFeature on the XMLReader depending on what class this is instanced (https://github.com/mysql/mysql-connector-j/blob/7ff2161da3899f379fb3171b6538b191b1c5c7e2/src/main/user-impl/java/com/mysql/cj/jdbc/MysqlSQLXML.java#L196 |  |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2471 |  |
| ubuntu | https://www.oracle.com/security-alerts/cpuoct2021.html |  |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2021-2471 |  |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2021-2471 |  |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2021-2471 |  |
| debian | https://security-tracker.debian.org/tracker/CVE-2021-2471 |  |
| oracle | https://www.oracle.com/security-alerts/cpuoct2021.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>

无
</details>

二、漏洞分析结构反馈
 影响性分析说明：
    Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.26 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors. CVSS 3.1 Base Score 5.9 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H). 
 openEuler评分：
  5.9
 Vector：CVSS：3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
 受影响版本排查(受影响/不受影响)：
  1.master(8.0.16):受影响
2.openEuler-20.03-LTS-SP1(8.0.16):受影响
3.openEuler-20.03-LTS-SP4:受影响
4.openEuler-22.03-LTS(8.0.16):受影响
5.openEuler-22.03-LTS-Next(8.0.16):受影响
6.openEuler-22.03-LTS-SP1(8.0.16):受影响
7.openEuler-22.03-LTS-SP2(8.0.16):受影响
8.openEuler-22.03-LTS-SP3:受影响

修复是否涉及abi变化(是/否)：
  1.master(8.0.16):是
2.openEuler-20.03-LTS-SP1(8.0.16):是
3.openEuler-20.03-LTS-SP4:是
4.openEuler-22.03-LTS(8.0.16):是
5.openEuler-22.03-LTS-Next(8.0.16):是
6.openEuler-22.03-LTS-SP1(8.0.16):是
7.openEuler-22.03-LTS-SP2(8.0.16):是
8.openEuler-22.03-LTS-SP3:是

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1103

src-openEuler/mysql-connector-java
Closed

Content Risk Flag

Comments (14)

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

Content Risk Flag

CVE-2021-2471

Comments (14)

Search

src-openEuler/mysql-connector-java
Closed