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vuln-ubuntu/data/osv/usn/USN-5090-1.json
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{
"schema_version": "1.7.0",
"id": "USN-5090-1",
"summary": "apache2 vulnerabilities",
"details": "James Kettle discovered that the Apache HTTP Server HTTP/2 module\nincorrectly handled certain crafted methods. A remote attacker could\npossibly use this issue to perform request splitting or cache poisoning\nattacks. (CVE-2021-33193)\n\nIt was discovered that the Apache HTTP Server incorrectly handled certain\nmalformed requests. A remote attacker could possibly use this issue to\ncause the server to crash, resulting in a denial of service.\n(CVE-2021-34798)\n\nLi Zhi Xin discovered that the Apache mod_proxy_uwsgi module incorrectly\nhandled certain request uri-paths. A remote attacker could possibly use\nthis issue to cause the server to crash, resulting in a denial of service.\nThis issue only affected Ubuntu 20.04 LTS and Ubuntu 21.04.\n(CVE-2021-36160)\n\nIt was discovered that the Apache HTTP Server incorrectly handled escaping\nquotes. If the server was configured with third-party modules, a remote\nattacker could use this issue to cause the server to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. (CVE-2021-39275)\n\nIt was discovered that the Apache mod_proxy module incorrectly handled\ncertain request uri-paths. A remote attacker could possibly use this issue\nto cause the server to forward requests to arbitrary origin servers.\n(CVE-2021-40438)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2021-33193",
"UBUNTU-CVE-2021-34798",
"UBUNTU-CVE-2021-36160",
"UBUNTU-CVE-2021-39275",
"UBUNTU-CVE-2021-40438"
],
"related": [],
"published": "2021-09-27T14:06:45Z",
"modified": "2026-04-22T07:37:00Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.29-1ubuntu4.17?arch=source&distro=bionic"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.29-1ubuntu4.17"
}
]
}
],
"versions": [
"2.4.27-2ubuntu3",
"2.4.29-1ubuntu1",
"2.4.29-1ubuntu2",
"2.4.29-1ubuntu3",
"2.4.29-1ubuntu4",
"2.4.29-1ubuntu4.1",
"2.4.29-1ubuntu4.2",
"2.4.29-1ubuntu4.3",
"2.4.29-1ubuntu4.4",
"2.4.29-1ubuntu4.5",
"2.4.29-1ubuntu4.6",
"2.4.29-1ubuntu4.7",
"2.4.29-1ubuntu4.8",
"2.4.29-1ubuntu4.10",
"2.4.29-1ubuntu4.11",
"2.4.29-1ubuntu4.12",
"2.4.29-1ubuntu4.13",
"2.4.29-1ubuntu4.14",
"2.4.29-1ubuntu4.16"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.29-1ubuntu4.17"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.29-1ubuntu4.17"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.29-1ubuntu4.17"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.29-1ubuntu4.17"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.29-1ubuntu4.17"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.29-1ubuntu4.17"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"id": "CVE-2021-33193",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-34798",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-39275",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.41-4ubuntu3.5?arch=source&distro=focal"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.41-4ubuntu3.5"
}
]
}
],
"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"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.41-4ubuntu3.5"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.41-4ubuntu3.5"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.41-4ubuntu3.5"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.41-4ubuntu3.5"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.41-4ubuntu3.5"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.41-4ubuntu3.5"
},
{
"binary_name": "libapache2-mod-md",
"binary_version": "2.4.41-4ubuntu3.5"
},
{
"binary_name": "libapache2-mod-proxy-uwsgi",
"binary_version": "2.4.41-4ubuntu3.5"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:20.04:LTS",
"cves": [
{
"id": "CVE-2021-33193",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-34798",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-36160",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-39275",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5090-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-33193"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-34798"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-36160"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-39275"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-40438"
}
]
}
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