USN-7824-1 (UBUNTU-CVE-2025-49844)

Vulnerability from osv_ubuntu – Published: 2025-10-15 15:33 – Updated: 2026-08-31 13:51 – Source website
VLAI
Summary
redis vulnerability
Details

Benny Isaacs, Nir Brakha, and Sagi Tzadik discovered that Redis incorrectly handled memory when running Lua scripts. An authenticated attacker could use this vulnerability to trigger a use-after-free condition, and potentially achieve remote code execution on the Redis server.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-49844",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
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                  "score": "high",
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                }
              ]
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          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "redis-server",
            "binary_version": "2:2.8.4-2ubuntu0.2+esm5"
          },
          {
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            "binary_version": "2:2.8.4-2ubuntu0.2+esm5"
          }
        ]
      },
      "package": {
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        "name": "redis",
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      },
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            },
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            }
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        "2:2.8.4-2ubuntu0.2+esm3",
        "2:2.8.4-2ubuntu0.2+esm4"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
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              "id": "CVE-2025-49844",
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                  "type": "CVSS_V3"
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        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
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            "binary_name": "redis-sentinel",
            "binary_version": "2:3.0.6-1ubuntu0.4+esm4"
          },
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            "binary_version": "2:3.0.6-1ubuntu0.4+esm4"
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          }
        ]
      },
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        "name": "redis",
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      },
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            },
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          "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",
        "2:3.0.6-1ubuntu0.4+esm2",
        "2:3.0.6-1ubuntu0.4+esm3"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
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              "id": "CVE-2025-49844",
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                  "type": "CVSS_V3"
                },
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
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                },
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                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
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          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
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            "binary_version": "5:4.0.9-1ubuntu0.2+esm6"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm6"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm6"
          },
          {
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            "binary_version": "5:4.0.9-1ubuntu0.2+esm6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:4.0.9-1ubuntu0.2+esm6?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
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            {
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            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.0.1-7",
        "4:4.0.2-6",
        "4:4.0.2-9",
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        "5:4.0.6-1",
        "5:4.0.6-2",
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        "5:4.0.9-1ubuntu0.2+esm4",
        "5:4.0.9-1ubuntu0.2+esm5"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
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            {
              "id": "CVE-2025-49844",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
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                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:5.0.7-2ubuntu0.1+esm4?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
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            }
          ],
          "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",
        "5:5.0.7-2ubuntu0.1+esm2",
        "5:5.0.7-2ubuntu0.1+esm3"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
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            {
              "id": "CVE-2025-49844",
              "severity": [
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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              ]
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          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
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            "binary_version": "5:7.0.15-1ubuntu0.24.04.2"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:7.0.15-1ubuntu0.24.04.2"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:7.0.15-1ubuntu0.24.04.2"
          },
          {
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            "binary_version": "5:7.0.15-1ubuntu0.24.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "redis",
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      },
      "ranges": [
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        "5:7.0.15-1ubuntu0.24.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-49844",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:8.0.2-3ubuntu0.25.10.1"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:8.0.2-3ubuntu0.25.10.1"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:8.0.2-3ubuntu0.25.10.1"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:8.0.2-3ubuntu0.25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:8.0.2-3ubuntu0.25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
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            {
              "introduced": "0"
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5:7.0.15-3",
        "5:7.0.15-3.1",
        "5:8.0.2-3",
        "5:8.0.2-3build1"
      ]
    }
  ],
  "aliases": [],
  "details": "Benny Isaacs, Nir Brakha, and Sagi Tzadik discovered that Redis incorrectly\nhandled memory when running Lua scripts. An authenticated attacker could\nuse this vulnerability to trigger a use-after-free condition, and\npotentially  achieve remote code execution on the Redis server.",
  "id": "USN-7824-1",
  "modified": "2026-08-31T13:51:35Z",
  "published": "2025-10-15T15:33:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7824-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-49844"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "redis vulnerability",
  "upstream": [
    "UBUNTU-CVE-2025-49844"
  ]
}



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