ubuntu-cve-2022-36021
Vulnerability from osv_ubuntu
Published
2023-03-01 16:15
Modified
2025-10-24 04:53
Summary
Details

Redis is an in-memory database that persists on disk. Authenticated users can use string matching commands (like SCAN or KEYS) with a specially crafted pattern to trigger a denial-of-service attack on Redis, causing it to hang and consume 100% CPU time. The problem is fixed in Redis versions 6.0.18, 6.2.11, 7.0.9.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "redis-server",
            "binary_version": "2:2.8.4-2ubuntu0.2+esm3"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "2:2.8.4-2ubuntu0.2+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@2:2.8.4-2ubuntu0.2+esm3?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:2.8.4-2ubuntu0.2+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:2.6.13-1",
        "2:2.6.16-3",
        "2:2.8.0-1",
        "2:2.8.2-1",
        "2:2.8.4-2",
        "2:2.8.4-2ubuntu0.2",
        "2:2.8.4-2ubuntu0.2+esm1",
        "2:2.8.4-2ubuntu0.2+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "redis-sentinel",
            "binary_version": "2:3.0.6-1ubuntu0.4+esm2"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "2:3.0.6-1ubuntu0.4+esm2"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "2:3.0.6-1ubuntu0.4+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@2:3.0.6-1ubuntu0.4+esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.0.6-1ubuntu0.4+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.0.3-3",
        "2:3.0.5-1",
        "2:3.0.5-2",
        "2:3.0.5-3",
        "2:3.0.5-4",
        "2:3.0.6-1",
        "2:3.0.6-1ubuntu0.2",
        "2:3.0.6-1ubuntu0.3",
        "2:3.0.6-1ubuntu0.4",
        "2:3.0.6-1ubuntu0.4+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm4"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:4.0.9-1ubuntu0.2+esm4?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5:4.0.9-1ubuntu0.2+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.0.1-7",
        "4:4.0.2-6",
        "4:4.0.2-9",
        "5:4.0.5-1",
        "5:4.0.6-1",
        "5:4.0.6-2",
        "5:4.0.7-1",
        "5:4.0.8-1",
        "5:4.0.8-2",
        "5:4.0.9-1",
        "5:4.0.9-1ubuntu0.1",
        "5:4.0.9-1ubuntu0.2",
        "5:4.0.9-1ubuntu0.2+esm2",
        "5:4.0.9-1ubuntu0.2+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm2"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm2"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm2"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:5.0.7-2ubuntu0.1+esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5:5.0.7-2ubuntu0.1+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5:5.0.5-2build1",
        "5:5.0.6-1",
        "5:5.0.7-1",
        "5:5.0.7-2",
        "5:5.0.7-2ubuntu0.1~esm1",
        "5:5.0.7-2ubuntu0.1",
        "5:5.0.7-2ubuntu0.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:6.0.16-1ubuntu1+esm1"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:6.0.16-1ubuntu1+esm1"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:6.0.16-1ubuntu1+esm1"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:6.0.16-1ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:6.0.16-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5:6.0.16-1ubuntu1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5:6.0.15-1",
        "5:6.0.16-1",
        "5:6.0.16-1build1",
        "5:6.0.16-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Redis is an in-memory database that persists on disk. Authenticated users can use string matching commands (like `SCAN` or `KEYS`) with a specially crafted pattern to trigger a denial-of-service attack on Redis, causing it to hang and consume 100% CPU time. The problem is fixed in Redis versions 6.0.18, 6.2.11, 7.0.9.",
  "id": "UBUNTU-CVE-2022-36021",
  "modified": "2025-10-24T04:53:47Z",
  "published": "2023-03-01T16:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-36021"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqv"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6531-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-36021"
    }
  ],
  "related": [
    "USN-6531-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-36021"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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