CVE-2020-36228

一、漏洞信息
 漏洞编号：[CVE-2020-36228](https://nvd.nist.gov/vuln/detail/CVE-2020-36228)
 漏洞归属组件：[openldap](https://gitee.com/src-openeuler/openldap)
 漏洞归属的版本：2.4.46,2.4.50
 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：
  An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List Exact Assertion processing, resulting in denial of service.
 漏洞公开时间：2021-01-27 02:15
 漏洞创建时间：2021-02-02 06:08:29
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2020-36228
<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://bugs.openldap.org/show_bug.cgi?id=9427 |  |
| MISC | https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57 |  |
| MISC | https://git.openldap.org/openldap/openldap/-/commit/91dccd25c347733b365adc74cb07d074512ed5ad |  |
| MLIST | https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html |  |
| DEBIAN | https://www.debian.org/security/2021/dsa-4845 |  |
| CONFIRM | https://security.netapp.com/advisory/ntap-20210226-0002/ |  |
| CONFIRM | https://support.apple.com/kb/HT212529 |  |
| FULLDISC | http://seclists.org/fulldisclosure/2021/May/70 |  |
| FULLDISC | http://seclists.org/fulldisclosure/2021/May/64 |  |
| FULLDISC | http://seclists.org/fulldisclosure/2021/May/65 |  |
| CONFIRM | https://support.apple.com/kb/HT212530 |  |
| CONFIRM | https://support.apple.com/kb/HT212531 |  |
| MLIST | https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E |  |
| MLIST | https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E |  |
| redhat | https://access.redhat.com/security/cve/CVE-2020-36228 |  |
| bugs | https://bugs.openldap.org/show_bug.cgi?id=9427 |  |
| git |  https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57 |  |
| git |  https://git.openldap.org/openldap/openldap/-/commit/91dccd25c347733b365adc74cb07d074512ed5ad |  |
| lists |  https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html |  |
| debian |  https://www.debian.org/security/2021/dsa-4845 |  |
| security |  https://security.netapp.com/advisory/ntap-20210226-0002/ |  |
| support |  https://support.apple.com/kb/HT212529 |  |
| seclists |  http://seclists.org/fulldisclosure/2021/May/70 |  |
| seclists |  http://seclists.org/fulldisclosure/2021/May/64 |  |
| seclists |  http://seclists.org/fulldisclosure/2021/May/65 |  |
| support |  https://support.apple.com/kb/HT212530 |  |
| support |  https://support.apple.com/kb/HT212531 |  |
| lists |  https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E |  |
| lists |  https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E |  |

</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：
    在2.4.57之前，OpenLDAP发现一个整数下溢，导致证书列表精确断言处理slapd崩溃，导致拒绝服务。 
 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-20.03-LTS(2.4.50):受影响
2.openEuler-20.03-LTS-SP1(2.4.50):受影响
3.openEuler-20.09(2.4.50):受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP1(2.4.50):
2.openEuler-20.03-LTS-SP3(2.4.50):
3.openEuler-22.03-LTS(2.6.0):
4.openEuler-22.03-LTS-SP1(2.6.0):

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2021-1062

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