usn-6885-2
Vulnerability from osv_ubuntu
Published
2024-07-11 17:25
Modified
2026-04-22 07:37
Summary
apache2 regression
Details

USN-6885-1 fixed vulnerabilities in Apache HTTP Server. One of the security fixes introduced a regression when proxying requests to a HTTP/2 server. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Marc Stern discovered that the Apache HTTP Server incorrectly handled serving WebSocket protocol upgrades over HTTP/2 connections. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. (CVE-2024-36387)

Orange Tsai discovered that the Apache HTTP Server mod_proxy module incorrectly sent certain request URLs with incorrect encodings to backends. A remote attacker could possibly use this issue to bypass authentication. (CVE-2024-38473)

Orange Tsai discovered that the Apache HTTP Server mod_rewrite module incorrectly handled certain substitutions. A remote attacker could possibly use this issue to execute scripts in directories not directly reachable by any URL, or cause a denial of service. Some environments may require using the new UnsafeAllow3F flag to handle unsafe substitutions. (CVE-2024-38474, CVE-2024-38475, CVE-2024-39573)

Orange Tsai discovered that the Apache HTTP Server incorrectly handled certain response headers. A remote attacker could possibly use this issue to obtain sensitive information, execute local scripts, or perform SSRF attacks. (CVE-2024-38476)

Orange Tsai discovered that the Apache HTTP Server mod_proxy module incorrectly handled certain requests. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. (CVE-2024-38477)

It was discovered that the Apache HTTP Server incorrectly handled certain handlers configured via AddType. A remote attacker could possibly use this issue to obtain source code. (CVE-2024-39884)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "apache2",
            "binary_version": "2.4.41-4ubuntu3.20"
          },
          {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.41-4ubuntu3.20"
          },
          {
            "binary_name": "apache2-data",
            "binary_version": "2.4.41-4ubuntu3.20"
          },
          {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.41-4ubuntu3.20"
          },
          {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.41-4ubuntu3.20"
          },
          {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.41-4ubuntu3.20"
          },
          {
            "binary_name": "libapache2-mod-md",
            "binary_version": "2.4.41-4ubuntu3.20"
          },
          {
            "binary_name": "libapache2-mod-proxy-uwsgi",
            "binary_version": "2.4.41-4ubuntu3.20"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "apache2",
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      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "2.4.41-4ubuntu1",
        "2.4.41-4ubuntu2",
        "2.4.41-4ubuntu3",
        "2.4.41-4ubuntu3.1",
        "2.4.41-4ubuntu3.3",
        "2.4.41-4ubuntu3.4",
        "2.4.41-4ubuntu3.5",
        "2.4.41-4ubuntu3.6",
        "2.4.41-4ubuntu3.7",
        "2.4.41-4ubuntu3.8",
        "2.4.41-4ubuntu3.9",
        "2.4.41-4ubuntu3.10",
        "2.4.41-4ubuntu3.11",
        "2.4.41-4ubuntu3.12",
        "2.4.41-4ubuntu3.13",
        "2.4.41-4ubuntu3.14",
        "2.4.41-4ubuntu3.15",
        "2.4.41-4ubuntu3.16",
        "2.4.41-4ubuntu3.17",
        "2.4.41-4ubuntu3.19"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "apache2",
            "binary_version": "2.4.52-1ubuntu4.11"
          },
          {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.52-1ubuntu4.11"
          },
          {
            "binary_name": "apache2-data",
            "binary_version": "2.4.52-1ubuntu4.11"
          },
          {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.52-1ubuntu4.11"
          },
          {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.52-1ubuntu4.11"
          },
          {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.52-1ubuntu4.11"
          },
          {
            "binary_name": "libapache2-mod-md",
            "binary_version": "2.4.52-1ubuntu4.11"
          },
          {
            "binary_name": "libapache2-mod-proxy-uwsgi",
            "binary_version": "2.4.52-1ubuntu4.11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "apache2",
        "purl": "pkg:deb/ubuntu/apache2@2.4.52-1ubuntu4.11?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.52-1ubuntu4.11"
            }
          ],
          "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"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "apache2",
            "binary_version": "2.4.58-1ubuntu8.3"
          },
          {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.58-1ubuntu8.3"
          },
          {
            "binary_name": "apache2-data",
            "binary_version": "2.4.58-1ubuntu8.3"
          },
          {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.58-1ubuntu8.3"
          },
          {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.58-1ubuntu8.3"
          },
          {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.58-1ubuntu8.3"
          },
          {
            "binary_name": "libapache2-mod-md",
            "binary_version": "2.4.58-1ubuntu8.3"
          },
          {
            "binary_name": "libapache2-mod-proxy-uwsgi",
            "binary_version": "2.4.58-1ubuntu8.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "apache2",
        "purl": "pkg:deb/ubuntu/apache2@2.4.58-1ubuntu8.3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.58-1ubuntu8.3"
            }
          ],
          "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"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-6885-1 fixed vulnerabilities in Apache HTTP Server. One of the security\nfixes introduced a regression when proxying requests to a HTTP/2 server.\nThis update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n Marc Stern discovered that the Apache HTTP Server incorrectly handled\n serving WebSocket protocol upgrades over HTTP/2 connections. A remote\n attacker could possibly use this issue to cause the server to crash,\n resulting in a denial of service. (CVE-2024-36387)\n \n Orange Tsai discovered that the Apache HTTP Server mod_proxy module\n incorrectly sent certain request URLs with incorrect encodings to backends.\n A remote attacker could possibly use this issue to bypass authentication.\n (CVE-2024-38473)\n \n Orange Tsai discovered that the Apache HTTP Server mod_rewrite module\n incorrectly handled certain substitutions. A remote attacker could possibly\n use this issue to execute scripts in directories not directly reachable\n by any URL, or cause a denial of service. Some environments may require\n using the new UnsafeAllow3F flag to handle unsafe substitutions.\n (CVE-2024-38474, CVE-2024-38475, CVE-2024-39573)\n \n Orange Tsai discovered that the Apache HTTP Server incorrectly handled\n certain response headers. A remote attacker could possibly use this issue\n to obtain sensitive information, execute local scripts, or perform SSRF\n attacks. (CVE-2024-38476)\n \n Orange Tsai discovered that the Apache HTTP Server mod_proxy module\n incorrectly handled certain requests. A remote attacker could possibly use\n this issue to cause the server to crash, resulting in a denial of service.\n (CVE-2024-38477)\n \n It was discovered that the Apache HTTP Server incorrectly handled certain\n handlers configured via AddType. A remote attacker could possibly use this\n issue to obtain source code. (CVE-2024-39884)\n",
  "id": "USN-6885-2",
  "modified": "2026-04-22T07:37:09Z",
  "published": "2024-07-11T17:25:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6885-2"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/2072648"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "apache2 regression",
  "upstream": []
}



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