usn-8457-2
Vulnerability from osv_ubuntu
Published
2026-06-24 06:38
Modified
2026-06-24 06:38
Summary
mysql-8.0 vulnerabilities
Details

USN-8457-1 fixed several vulnerabilities in MySQL. This update provides the corresponding fixes for MySQL on Ubuntu 20.04 LTS

Original advisory details:

It was discovered that MySQL Router incorrectly handled repeated TLS protocol upgrade requests. An unauthenticated remote attacker could possibly use this issue to cause MySQL Router to crash, resulting in a denial of service. (CVE-2026-46862)

It was discovered that MySQL Server incorrectly handled connection authentication. An unauthenticated remote attacker could possibly use this issue to cause MySQL to crash, resulting in a denial of service. (CVE-2026-46863)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-46862",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-46863",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libmysqlclient21",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-client",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-client-8.0",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-client-core-8.0",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-router",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-server",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-server-8.0",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-server-core-8.0",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-source-8.0",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-testsuite",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          },
          {
            "binary_name": "mysql-testsuite-8.0",
            "binary_version": "8.0.46-0ubuntu0.20.04.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "mysql-8.0",
        "purl": "pkg:deb/ubuntu/mysql-8.0@8.0.46-0ubuntu0.20.04.1+esm3?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.0.46-0ubuntu0.20.04.1+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.0.17-0ubuntu2",
        "8.0.17-0ubuntu3",
        "8.0.18-0ubuntu3",
        "8.0.18-0ubuntu4",
        "8.0.18-0ubuntu5",
        "8.0.19-0ubuntu2",
        "8.0.19-0ubuntu3",
        "8.0.19-0ubuntu4",
        "8.0.19-0ubuntu5",
        "8.0.20-0ubuntu0.20.04.1",
        "8.0.21-0ubuntu0.20.04.3",
        "8.0.21-0ubuntu0.20.04.4",
        "8.0.22-0ubuntu0.20.04.2",
        "8.0.22-0ubuntu0.20.04.3",
        "8.0.23-0ubuntu0.20.04.1",
        "8.0.25-0ubuntu0.20.04.1",
        "8.0.26-0ubuntu0.20.04.2",
        "8.0.26-0ubuntu0.20.04.3",
        "8.0.27-0ubuntu0.20.04.1",
        "8.0.28-0ubuntu0.20.04.3",
        "8.0.29-0ubuntu0.20.04.2",
        "8.0.29-0ubuntu0.20.04.3",
        "8.0.30-0ubuntu0.20.04.2",
        "8.0.31-0ubuntu0.20.04.1",
        "8.0.31-0ubuntu0.20.04.2",
        "8.0.32-0buntu0.20.04.1",
        "8.0.32-0ubuntu0.20.04.2",
        "8.0.33-0ubuntu0.20.04.1",
        "8.0.33-0ubuntu0.20.04.2",
        "8.0.33-0ubuntu0.20.04.4",
        "8.0.34-0ubuntu0.20.04.1",
        "8.0.35-0ubuntu0.20.04.1",
        "8.0.36-0ubuntu0.20.04.1",
        "8.0.37-0ubuntu0.20.04.3",
        "8.0.39-0ubuntu0.20.04.1",
        "8.0.40-0ubuntu0.20.04.1",
        "8.0.41-0ubuntu0.20.04.1",
        "8.0.42-0ubuntu0.20.04.1",
        "8.0.43-0ubuntu0.20.04.1+esm1",
        "8.0.45-0ubuntu0.20.04.1+esm2",
        "8.0.46-0ubuntu0.20.04.1+esm2"
      ]
    }
  ],
  "aliases": [],
  "details": "\nUSN-8457-1 fixed several vulnerabilities in MySQL. This update\nprovides the corresponding fixes for MySQL on Ubuntu 20.04 LTS\n\nOriginal advisory details:\n\n It was discovered that MySQL Router incorrectly handled repeated TLS\n protocol upgrade requests. An unauthenticated remote attacker could\n possibly use this issue to cause MySQL Router to crash, resulting in a\n denial of service. (CVE-2026-46862)\n\n It was discovered that MySQL Server incorrectly handled connection\n authentication. An unauthenticated remote attacker could possibly use this\n issue to cause MySQL to crash, resulting in a denial of service.\n (CVE-2026-46863)",
  "id": "USN-8457-2",
  "modified": "2026-06-24T06:38:35Z",
  "published": "2026-06-24T06:38:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8457-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46862"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46863"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "mysql-8.0 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-46862",
    "UBUNTU-CVE-2026-46863"
  ]
}



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