usn-6662-1
Vulnerability from osv_ubuntu
Published
2024-02-27 02:12
Modified
2026-04-27 14:11
Summary
openjdk-21 vulnerabilities
Details

Yi Yang discovered that the Hotspot component of OpenJDK 21 incorrectly handled array accesses in the C1 compiler. An attacker could possibly use this issue to cause a denial of service, execute arbitrary code or bypass Java sandbox restrictions. (CVE-2024-20918)

It was discovered that the Hotspot component of OpenJDK 21 did not properly verify bytecode in certain situations. An attacker could possibly use this issue to bypass Java sandbox restrictions. (CVE-2024-20919)

It was discovered that the Hotspot component of OpenJDK 21 had an optimization flaw when generating range check loop predicates. An attacker could possibly use this issue to cause a denial of service, execute arbitrary code or bypass Java sandbox restrictions. (CVE-2024-20921)

It was discovered that OpenJDK 21 could produce debug logs that contained private keys used for digital signatures. An attacker could possibly use this issue to obtain sensitive information. (CVE-2024-20945)

Hubert Kario discovered that the TLS implementation in OpenJDK 21 had a timing side-channel and incorrectly handled RSA padding. A remote attacker could possibly use this issue to recover sensitive information. (CVE-2024-20952)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-20918",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-20919",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-20921",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-20945",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-20952",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "openjdk-21-demo",
            "binary_version": "21.0.2+13-1~20.04.1"
          },
          {
            "binary_name": "openjdk-21-jdk",
            "binary_version": "21.0.2+13-1~20.04.1"
          },
          {
            "binary_name": "openjdk-21-jdk-headless",
            "binary_version": "21.0.2+13-1~20.04.1"
          },
          {
            "binary_name": "openjdk-21-jre",
            "binary_version": "21.0.2+13-1~20.04.1"
          },
          {
            "binary_name": "openjdk-21-jre-headless",
            "binary_version": "21.0.2+13-1~20.04.1"
          },
          {
            "binary_name": "openjdk-21-jre-zero",
            "binary_version": "21.0.2+13-1~20.04.1"
          },
          {
            "binary_name": "openjdk-21-source",
            "binary_version": "21.0.2+13-1~20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "openjdk-21",
        "purl": "pkg:deb/ubuntu/openjdk-21@21.0.2+13-1~20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "21.0.2+13-1~20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "21.0.1+12-2~20.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-20918",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-20919",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-20921",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-20945",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-20952",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "openjdk-21-demo",
            "binary_version": "21.0.2+13-1~22.04.1"
          },
          {
            "binary_name": "openjdk-21-jdk",
            "binary_version": "21.0.2+13-1~22.04.1"
          },
          {
            "binary_name": "openjdk-21-jdk-headless",
            "binary_version": "21.0.2+13-1~22.04.1"
          },
          {
            "binary_name": "openjdk-21-jre",
            "binary_version": "21.0.2+13-1~22.04.1"
          },
          {
            "binary_name": "openjdk-21-jre-headless",
            "binary_version": "21.0.2+13-1~22.04.1"
          },
          {
            "binary_name": "openjdk-21-jre-zero",
            "binary_version": "21.0.2+13-1~22.04.1"
          },
          {
            "binary_name": "openjdk-21-source",
            "binary_version": "21.0.2+13-1~22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "openjdk-21",
        "purl": "pkg:deb/ubuntu/openjdk-21@21.0.2+13-1~22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "21.0.2+13-1~22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "21.0.1+12-2~22.04"
      ]
    }
  ],
  "aliases": [],
  "details": "Yi Yang discovered that the Hotspot component of OpenJDK 21 incorrectly\nhandled array accesses in the C1 compiler. An attacker could possibly\nuse this issue to cause a denial of service, execute arbitrary code or\nbypass Java sandbox restrictions. (CVE-2024-20918)\n\nIt was discovered that the Hotspot component of OpenJDK 21 did not\nproperly verify bytecode in certain situations. An attacker could\npossibly use this issue to bypass Java sandbox restrictions.\n(CVE-2024-20919)\n\nIt was discovered that the Hotspot component of OpenJDK 21 had an\noptimization flaw when generating range check loop predicates. An attacker\ncould possibly use this issue to cause a denial of service, execute\narbitrary code or bypass Java sandbox restrictions. (CVE-2024-20921)\n\nIt was discovered that OpenJDK 21 could produce debug logs that contained\nprivate keys used for digital signatures. An attacker could possibly use\nthis issue to obtain sensitive information. (CVE-2024-20945)\n\nHubert Kario discovered that the TLS implementation in OpenJDK 21 had a\ntiming side-channel and incorrectly handled RSA padding. A remote attacker\ncould possibly use this issue to recover sensitive information.\n(CVE-2024-20952)\n",
  "id": "USN-6662-1",
  "modified": "2026-04-27T14:11:32Z",
  "published": "2024-02-27T02:12:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6662-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-20918"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-20919"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-20921"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-20945"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-20952"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "openjdk-21 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2024-20918",
    "UBUNTU-CVE-2024-20919",
    "UBUNTU-CVE-2024-20921",
    "UBUNTU-CVE-2024-20945",
    "UBUNTU-CVE-2024-20952"
  ]
}



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