usn-5303-1
Vulnerability from osv_ubuntu
Published
2022-02-28 12:20
Modified
2026-04-22 07:37
Summary
php7.4, php8.0 vulnerability
Details
It was discovered that PHP incorrectly handled certain scripts. An attacker could possibly use this issue to cause a denial of service, or possibly execute arbitrary code.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-21708",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libapache2-mod-php7.4",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "libphp7.4-embed",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-bcmath",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-bz2",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-cgi",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-cli",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-common",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-curl",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-dba",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-enchant",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-fpm",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-gd",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-gmp",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-imap",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-interbase",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-intl",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-json",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-ldap",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-mbstring",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-mysql",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-odbc",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-opcache",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-pgsql",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-phpdbg",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-pspell",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-readline",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-snmp",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-soap",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-sqlite3",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-sybase",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-tidy",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-xml",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-xmlrpc",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-xsl",
"binary_version": "7.4.3-4ubuntu2.9"
},
{
"binary_name": "php7.4-zip",
"binary_version": "7.4.3-4ubuntu2.9"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "php7.4",
"purl": "pkg:deb/ubuntu/php7.4@7.4.3-4ubuntu2.9?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.4.3-4ubuntu2.9"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.4.3-4build1",
"7.4.3-4build2",
"7.4.3-4ubuntu1",
"7.4.3-4ubuntu1.1",
"7.4.3-4ubuntu2.2",
"7.4.3-4ubuntu2.4",
"7.4.3-4ubuntu2.5",
"7.4.3-4ubuntu2.6",
"7.4.3-4ubuntu2.7",
"7.4.3-4ubuntu2.8"
]
}
],
"aliases": [],
"details": "It was discovered that PHP incorrectly handled certain scripts.\nAn attacker could possibly use this issue to cause a denial of service,\nor possibly execute arbitrary code.\n",
"id": "USN-5303-1",
"modified": "2026-04-22T07:37:01Z",
"published": "2022-02-28T12:20:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5303-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-21708"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "php7.4, php8.0 vulnerability",
"upstream": [
"UBUNTU-CVE-2021-21708"
]
}
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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.
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