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vuln-ubuntu/data/osv/usn/USN-5090-2.json
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{
"schema_version": "1.7.0",
"id": "USN-5090-2",
"summary": "apache2 vulnerabilities",
"details": "USN-5090-1 fixed several vulnerabilities in Apache. This update provides\nthe corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that the Apache HTTP Server incorrectly handled certain\n malformed requests. A remote attacker could possibly use this issue to\n cause the server to crash, resulting in a denial of service.\n (CVE-2021-34798)\n\n It was discovered that the Apache HTTP Server incorrectly handled escaping\n quotes. If the server was configured with third-party modules, a remote\n attacker could use this issue to cause the server to crash, resulting in a\n denial of service, or possibly execute arbitrary code. (CVE-2021-39275)\n\n It was discovered that the Apache mod_proxy module incorrectly handled\n certain request uri-paths. A remote attacker could possibly use this issue\n to cause the server to forward requests to arbitrary origin servers.\n (CVE-2021-40438)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2021-34798",
"UBUNTU-CVE-2021-39275",
"UBUNTU-CVE-2021-40438"
],
"related": [],
"published": "2021-09-27T16:46:11Z",
"modified": "2026-06-29T10:52:51Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.7-1ubuntu4.22+esm2?arch=source&distro=trusty/esm"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.7-1ubuntu4.22+esm2"
}
]
}
],
"versions": [
"2.4.6-2ubuntu2",
"2.4.6-2ubuntu3",
"2.4.6-2ubuntu4",
"2.4.7-1ubuntu1",
"2.4.7-1ubuntu2",
"2.4.7-1ubuntu3",
"2.4.7-1ubuntu4",
"2.4.7-1ubuntu4.1",
"2.4.7-1ubuntu4.4",
"2.4.7-1ubuntu4.5",
"2.4.7-1ubuntu4.6",
"2.4.7-1ubuntu4.7",
"2.4.7-1ubuntu4.8",
"2.4.7-1ubuntu4.9",
"2.4.7-1ubuntu4.10",
"2.4.7-1ubuntu4.11",
"2.4.7-1ubuntu4.13",
"2.4.7-1ubuntu4.15",
"2.4.7-1ubuntu4.16",
"2.4.7-1ubuntu4.17",
"2.4.7-1ubuntu4.18",
"2.4.7-1ubuntu4.19",
"2.4.7-1ubuntu4.20",
"2.4.7-1ubuntu4.21",
"2.4.7-1ubuntu4.22",
"2.4.7-1ubuntu4.22+esm1"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-mpm-event",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-mpm-itk",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-mpm-prefork",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-mpm-worker",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-suexec",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "apache2.2-bin",
"binary_version": "2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "libapache2-mod-macro",
"binary_version": "1:2.4.7-1ubuntu4.22+esm2"
},
{
"binary_name": "libapache2-mod-proxy-html",
"binary_version": "1:2.4.7-1ubuntu4.22+esm2"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"cves": [
{
"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:Pro:16.04:LTS",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.18-2ubuntu3.17+esm2?arch=source&distro=esm-infra/xenial"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.18-2ubuntu3.17+esm2"
}
]
}
],
"versions": [
"2.4.12-2ubuntu2",
"2.4.17-1ubuntu1",
"2.4.17-2ubuntu1",
"2.4.17-3ubuntu1",
"2.4.18-1ubuntu1",
"2.4.18-2ubuntu1",
"2.4.18-2ubuntu2",
"2.4.18-2ubuntu3",
"2.4.18-2ubuntu3.1",
"2.4.18-2ubuntu3.2",
"2.4.18-2ubuntu3.3",
"2.4.18-2ubuntu3.4",
"2.4.18-2ubuntu3.5",
"2.4.18-2ubuntu3.7",
"2.4.18-2ubuntu3.8",
"2.4.18-2ubuntu3.9",
"2.4.18-2ubuntu3.10",
"2.4.18-2ubuntu3.12",
"2.4.18-2ubuntu3.13",
"2.4.18-2ubuntu3.14",
"2.4.18-2ubuntu3.15",
"2.4.18-2ubuntu3.17",
"2.4.18-2ubuntu3.17+esm1"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.18-2ubuntu3.17+esm2"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.18-2ubuntu3.17+esm2"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.18-2ubuntu3.17+esm2"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.18-2ubuntu3.17+esm2"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.18-2ubuntu3.17+esm2"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.18-2ubuntu3.17+esm2"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"cves": [
{
"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"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5090-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-34798"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-39275"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-40438"
}
]
}
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