usn-7639-1
Vulnerability from osv_ubuntu
Published
2025-07-16 17:25
Modified
2026-04-27 14:11
Summary
apache2 vulnerabilities
Details

It was discovered that the Apache HTTP Server incorrectly handled certain Content-Type response headers. A remote attacker could possibly use this issue to perform HTTP response splitting attacks. (CVE-2024-42516)

xiaojunjie discovered that the Apache HTTP Server mod_proxy module incorrectly handled certain requests. A remote attacker could possibly use this issue to send outbound proxy requests to an arbitrary URL. (CVE-2024-43204)

John Runyon discovered that the Apache HTTP Server mod_ssl module incorrectly escaped certain data. A remote attacker could possibly use this issue to insert escape characters into log files. (CVE-2024-47252)

Sven Hebrok, Felix Cramer, Tim Storm, Maximilian Radoy, and Juraj Somorovsky discovered that the Apache HTTP Server mod_ssl module incorrectly handled TLS 1.3 session resumption. A remote attacker could possibly use this issue to bypass access control. (CVE-2025-23048)

Anthony CORSIEZ discovered that the Apache HTTP Server mod_proxy_http2 module incorrectly handled missing host headers. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. (CVE-2025-49630)

Robert Merget discovered that the Apache HTTP Server mod_ssl module incorrectly handled TLS upgrades. A remote attacker could possibly use this issue to hijack an HTTP session. This update removes the old "SSLEngine optional" configuration option, possibly requiring a configuration change in certain environments. (CVE-2025-49812)

Gal Bar Nahum discovered that the Apache HTTP Server incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause the server to consume resources, leading to a denial of service. (CVE-2025-53020)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-42516",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-43204",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-47252",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-23048",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49630",
              "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-2025-49812",
              "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-2025-53020",
              "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:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "apache2",
            "binary_version": "2.4.52-1ubuntu4.15"
          },
          {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.52-1ubuntu4.15"
          },
          {
            "binary_name": "apache2-data",
            "binary_version": "2.4.52-1ubuntu4.15"
          },
          {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.52-1ubuntu4.15"
          },
          {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.52-1ubuntu4.15"
          },
          {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.52-1ubuntu4.15"
          },
          {
            "binary_name": "libapache2-mod-md",
            "binary_version": "2.4.52-1ubuntu4.15"
          },
          {
            "binary_name": "libapache2-mod-proxy-uwsgi",
            "binary_version": "2.4.52-1ubuntu4.15"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "apache2",
        "purl": "pkg:deb/ubuntu/apache2@2.4.52-1ubuntu4.15?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.52-1ubuntu4.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.48-3.1ubuntu3",
        "2.4.48-3.1ubuntu4",
        "2.4.51-2ubuntu1",
        "2.4.52-1ubuntu1",
        "2.4.52-1ubuntu2",
        "2.4.52-1ubuntu4",
        "2.4.52-1ubuntu4.1",
        "2.4.52-1ubuntu4.2",
        "2.4.52-1ubuntu4.3",
        "2.4.52-1ubuntu4.4",
        "2.4.52-1ubuntu4.5",
        "2.4.52-1ubuntu4.6",
        "2.4.52-1ubuntu4.7",
        "2.4.52-1ubuntu4.8",
        "2.4.52-1ubuntu4.9",
        "2.4.52-1ubuntu4.10",
        "2.4.52-1ubuntu4.11",
        "2.4.52-1ubuntu4.12",
        "2.4.52-1ubuntu4.13",
        "2.4.52-1ubuntu4.14"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-42516",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-43204",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-47252",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-23048",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49630",
              "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-2025-49812",
              "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-2025-53020",
              "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:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "apache2",
            "binary_version": "2.4.58-1ubuntu8.7"
          },
          {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.58-1ubuntu8.7"
          },
          {
            "binary_name": "apache2-data",
            "binary_version": "2.4.58-1ubuntu8.7"
          },
          {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.58-1ubuntu8.7"
          },
          {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.58-1ubuntu8.7"
          },
          {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.58-1ubuntu8.7"
          },
          {
            "binary_name": "libapache2-mod-md",
            "binary_version": "2.4.58-1ubuntu8.7"
          },
          {
            "binary_name": "libapache2-mod-proxy-uwsgi",
            "binary_version": "2.4.58-1ubuntu8.7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "apache2",
        "purl": "pkg:deb/ubuntu/apache2@2.4.58-1ubuntu8.7?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.58-1ubuntu8.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.57-2ubuntu2",
        "2.4.57-2ubuntu3",
        "2.4.58-1ubuntu1",
        "2.4.58-1ubuntu2",
        "2.4.58-1ubuntu6",
        "2.4.58-1ubuntu7",
        "2.4.58-1ubuntu8",
        "2.4.58-1ubuntu8.1",
        "2.4.58-1ubuntu8.2",
        "2.4.58-1ubuntu8.3",
        "2.4.58-1ubuntu8.4",
        "2.4.58-1ubuntu8.5",
        "2.4.58-1ubuntu8.6"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the Apache HTTP Server incorrectly handled certain\nContent-Type response headers. A remote attacker could possibly use this\nissue to perform HTTP response splitting attacks. (CVE-2024-42516)\n\nxiaojunjie discovered that the Apache HTTP Server mod_proxy module\nincorrectly handled certain requests. A remote attacker could possibly use\nthis issue to send outbound proxy requests to an arbitrary URL.\n(CVE-2024-43204)\n\nJohn Runyon discovered that the Apache HTTP Server mod_ssl module\nincorrectly escaped certain data. A remote attacker could possibly use this\nissue to insert escape characters into log files. (CVE-2024-47252)\n\nSven Hebrok, Felix Cramer, Tim Storm, Maximilian Radoy, and Juraj\nSomorovsky discovered that the Apache HTTP Server mod_ssl module\nincorrectly handled TLS 1.3 session resumption. A remote attacker could\npossibly use this issue to bypass access control. (CVE-2025-23048)\n\nAnthony CORSIEZ discovered that the Apache HTTP Server mod_proxy_http2\nmodule incorrectly handled missing host headers. A remote attacker could\npossibly use this issue to cause the server to crash, resulting in a denial\nof service. (CVE-2025-49630)\n\nRobert Merget discovered that the Apache HTTP Server mod_ssl module\nincorrectly handled TLS upgrades. A remote attacker could possibly use this\nissue to hijack an HTTP session. This update removes the old \"SSLEngine\noptional\" configuration option, possibly requiring a configuration change\nin certain environments. (CVE-2025-49812)\n\nGal Bar Nahum discovered that the Apache HTTP Server incorrectly handled\ncertain memory operations. A remote attacker could possibly use this\nissue to cause the server to consume resources, leading to a denial of\nservice. (CVE-2025-53020)",
  "id": "USN-7639-1",
  "modified": "2026-04-27T14:11:44Z",
  "published": "2025-07-16T17:25:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7639-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-42516"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-43204"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-47252"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-23048"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-49630"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-49812"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-53020"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "apache2 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2024-42516",
    "UBUNTU-CVE-2024-43204",
    "UBUNTU-CVE-2024-47252",
    "UBUNTU-CVE-2025-23048",
    "UBUNTU-CVE-2025-49630",
    "UBUNTU-CVE-2025-49812",
    "UBUNTU-CVE-2025-53020"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.


Detection rules are retrieved from Rulezet.