CVE-2025-21605

一、漏洞信息
 漏洞编号：[CVE-2025-21605](https://nvd.nist.gov/vuln/detail/CVE-2025-21605)
 漏洞归属组件：[redis6](https://gitee.com/src-openeuler/redis6)
 漏洞归属的版本：6.0.11,6.2.7
 CVSS V3.x分值：
  BaseScore：N/A None
  Vector：
 漏洞简述：
  Redis is an open source, in-memory database that persists on disk. In versions starting at 2.6 and prior to 7.4.3, An unauthenticated client can cause unlimited growth of output buffers, until the server runs out of memory or is killed. By default, the Redis configuration does not limit the output buffer of normal clients (see client-output-buffer-limit). Therefore, the output buffer can grow unlimitedly over time. As a result, the service is exhausted and the memory is unavailable. When password authentication is enabled on the Redis server, but no password is provided, the client can still cause the output buffer to grow from  NOAUTH  responses until the system will run out of memory. This issue has been patched in version 7.4.3. An additional workaround to mitigate this problem without patching the redis-server executable is to block access to prevent unauthenticated users from connecting to Redis. This can be done in different ways. Either using network access control tools like firewalls, iptables, security groups, etc, or enabling TLS and requiring users to authenticate using client side certificates.
 漏洞公开时间：2025-04-24 00:15:34
 漏洞创建时间：2025-04-25 03:23:54
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-21605
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| security-advisories.github.com | https://github.com/redis/redis/releases/tag/7.4.3 |  |
| security-advisories.github.com | https://github.com/redis/redis/security/advisories/GHSA-r67f-p999-2gff |  |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.debian.org/debian-lts-announce/2025/05/msg00014.html |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-21605 | https://bugzilla.suse.com/show_bug.cgi?id=1241708 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2025-21605 | https://bugzilla.suse.com/show_bug.cgi?id=1241708 |
| suse_bugzilla | https://github.com/redis/redis/releases/tag/7.4.3 | https://bugzilla.suse.com/show_bug.cgi?id=1241708 |
| suse_bugzilla | https://github.com/redis/redis/security/advisories/GHSA-r67f-p999-2gff | https://bugzilla.suse.com/show_bug.cgi?id=1241708 |
| suse_bugzilla | https://github.com/CVEProject/cvelistV5/blob/main//cves/2025/21xxx/CVE-2025-21605.json | https://bugzilla.suse.com/show_bug.cgi?id=1241708 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 | https://bugzilla.suse.com/show_bug.cgi?id=1241708 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:4441 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:4561 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:4577 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:4607 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:4789 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:4788 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:7429 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:7438 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:7509 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:7538 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:7686 | https://bugzilla.redhat.com/show_bug.cgi?id=2361883 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2025-21605 |
| osv | https://github.com/redis/redis/security/advisories/GHSA-r67f-p999-2gff | https://osv.dev/vulnerability/CVE-2025-21605 |
| osv | https://github.com/redis/redis/releases/tag/7.4.3 | https://osv.dev/vulnerability/CVE-2025-21605 |
| osv | https://security-tracker.debian.org/tracker/CVE-2025-21605 | https://osv.dev/vulnerability/CVE-2025-21605 |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2025-21605 | https://explore.alas.aws.amazon.com/CVE-2025-21605.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21605 | https://explore.alas.aws.amazon.com/CVE-2025-21605.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:
  openBrain开源漏洞感知系统
 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：
  未经身份验证的客户端（即使服务器启用了密码）可通过持续接收 NOAUTH 响应，导致其输出缓冲区无限制增长。
 openEuler评分：
  7.5
 Vector：CVSS:3.1/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.master(6.2.7):受影响
2.openEuler-20.03-LTS-SP4(6.2.7):受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:受影响
7.openEuler-24.03-LTS-SP1:受影响
8.openEuler-24.03-LTS-SP2:受影响
9.openEuler-24.03-LTS-SP3:受影响

修复是否涉及abi变化(是/否)：
  1.master(6.2.7):否
2.openEuler-20.03-LTS-SP4(6.2.7):否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2:否
9.openEuler-24.03-LTS-SP3:否

原因说明：
  1.master(6.2.7):正常修复
2.openEuler-20.03-LTS-SP4(6.2.7):正常修复
3.openEuler-22.03-LTS-SP3:正常修复
4.openEuler-22.03-LTS-SP4:正常修复
5.openEuler-24.03-LTS:正常修复
6.openEuler-24.03-LTS-Next:正常修复
7.openEuler-24.03-LTS-SP1:正常修复
8.openEuler-24.03-LTS-SP2:正常修复
9.openEuler-24.03-LTS-SP3:正常修复

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-2841

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