USN-6885-2
Vulnerability from osv_ubuntu – Published: 2024-07-11 17:25 – Updated: 2026-04-22 07:37 – Source websiteUSN-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)
| URL | Type | |
|---|---|---|
{
"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",
"purl": "pkg:deb/ubuntu/apache2@2.4.41-4ubuntu3.20?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.41-4ubuntu3.20"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.41-1ubuntu1",
"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": []
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- 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.
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