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OESA-2025-1474 (CVE-2025-21605)

Vulnerability from osv_openeuler – Published: 2025-05-09 11:08 – Updated: 2026-08-06 11:08 – Source website
VLAI
Summary
redis security update
Details

Redis is an advanced key-value store. It is often referred to as a dattructure server since keys can contain strings, hashes ,lists, sets anorted sets.

Security Fix(es):

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.(CVE-2025-21605)

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "redis-7.2.8-1.oe2003sp4.aarch64.rpm",
          "redis-debuginfo-7.2.8-1.oe2003sp4.aarch64.rpm",
          "redis-debugsource-7.2.8-1.oe2003sp4.aarch64.rpm"
        ],
        "src": [
          "redis-7.2.8-1.oe2003sp4.src.rpm"
        ],
        "x86_64": [
          "redis-7.2.8-1.oe2003sp4.x86_64.rpm",
          "redis-debuginfo-7.2.8-1.oe2003sp4.x86_64.rpm",
          "redis-debugsource-7.2.8-1.oe2003sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "redis",
        "purl": "pkg:rpm/openEuler/redis\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.8-1.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "redis-7.2.8-1.oe2203sp3.aarch64.rpm",
          "redis-debuginfo-7.2.8-1.oe2203sp3.aarch64.rpm",
          "redis-debugsource-7.2.8-1.oe2203sp3.aarch64.rpm"
        ],
        "src": [
          "redis-7.2.8-1.oe2203sp3.src.rpm"
        ],
        "x86_64": [
          "redis-7.2.8-1.oe2203sp3.x86_64.rpm",
          "redis-debuginfo-7.2.8-1.oe2203sp3.x86_64.rpm",
          "redis-debugsource-7.2.8-1.oe2203sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP3",
        "name": "redis",
        "purl": "pkg:rpm/openEuler/redis\u0026distro=openEuler-22.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.8-1.oe2203sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "redis-7.2.8-1.oe2203sp4.aarch64.rpm",
          "redis-debuginfo-7.2.8-1.oe2203sp4.aarch64.rpm",
          "redis-debugsource-7.2.8-1.oe2203sp4.aarch64.rpm"
        ],
        "src": [
          "redis-7.2.8-1.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "redis-7.2.8-1.oe2203sp4.x86_64.rpm",
          "redis-debuginfo-7.2.8-1.oe2203sp4.x86_64.rpm",
          "redis-debugsource-7.2.8-1.oe2203sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "redis",
        "purl": "pkg:rpm/openEuler/redis\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.8-1.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "redis-7.2.8-1.oe2403.aarch64.rpm",
          "redis-debuginfo-7.2.8-1.oe2403.aarch64.rpm",
          "redis-debugsource-7.2.8-1.oe2403.aarch64.rpm",
          "redis-7.2.8-1.oe2403sp1.aarch64.rpm",
          "redis-debuginfo-7.2.8-1.oe2403sp1.aarch64.rpm",
          "redis-debugsource-7.2.8-1.oe2403sp1.aarch64.rpm"
        ],
        "src": [
          "redis-7.2.8-1.oe2403.src.rpm",
          "redis-7.2.8-1.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "redis-7.2.8-1.oe2403.x86_64.rpm",
          "redis-debuginfo-7.2.8-1.oe2403.x86_64.rpm",
          "redis-debugsource-7.2.8-1.oe2403.x86_64.rpm",
          "redis-7.2.8-1.oe2403sp1.x86_64.rpm",
          "redis-debuginfo-7.2.8-1.oe2403sp1.x86_64.rpm",
          "redis-debugsource-7.2.8-1.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS",
        "name": "redis",
        "purl": "pkg:rpm/openEuler/redis\u0026distro=openEuler-24.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.8-1.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "redis-7.2.8-1.oe2403sp1.aarch64.rpm",
          "redis-debuginfo-7.2.8-1.oe2403sp1.aarch64.rpm",
          "redis-debugsource-7.2.8-1.oe2403sp1.aarch64.rpm"
        ],
        "src": [
          "redis-7.2.8-1.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "redis-7.2.8-1.oe2403sp1.x86_64.rpm",
          "redis-debuginfo-7.2.8-1.oe2403sp1.x86_64.rpm",
          "redis-debugsource-7.2.8-1.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "redis",
        "purl": "pkg:rpm/openEuler/redis\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.8-1.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Redis is an advanced key-value store. It is often referred to as a dattructure server since keys can contain strings, hashes ,lists, sets anorted sets.\r\n\r\nSecurity Fix(es):\n\nRedis 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 \u0026quot;NOAUTH\u0026quot; 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.(CVE-2025-21605)",
  "id": "OESA-2025-1474",
  "modified": "2026-08-06T11:08:34Z",
  "published": "2025-05-09T11:08:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1474"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21605"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "redis security update",
  "upstream": [
    "CVE-2025-21605"
  ]
}



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