UnratedFix available
Fix of CVE: CVE-2021-21704, CVE-2021-21703, CVE-2021-21705
Type: advisorySources: OSV
- CVE-2021-21704: fix integer overflow and subsequent incorrect buffer allocation - CVE-2021-21705: fix incorrect url password validation - CVE-2021-21703: fix incorrect shared memory management, which led to priv escalation
- Products
- php, php-bcmath, php-cli, php-common, php-dba, php-devel, php-embedded, php-enchant, php-fpm, php-gd, php-imap, php-intl, php-ldap, php-mbstring, php-mysql, php-odbc, php-pdo, php-pgsql, php-process, php-pspell, php-recode, php-snmp, php-soap, php-tidy, php-xml, php-xmlrpc, php-zts
- Affected versions
- Not specified
- Fixed versions
- 5.3.3-55.el6.cloudlinux.els
- CVEs
- CVE-2021-21703, CVE-2021-21704, CVE-2021-21705
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 13:53 UTC · Revision 1
Source evidence
Fix of CVE: CVE-2021-21704, CVE-2021-21703, CVE-2021-21705
core-osv · Original sourcePublished 23 Nov 2021, 13:13 UTC
- CVE-2021-21704: fix integer overflow and subsequent incorrect buffer allocation - CVE-2021-21705: fix incorrect url password validation - CVE-2021-21703: fix incorrect shared memory management, which led to priv escalation
osv:CLSA-2021-1637673193
php
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-bcmath
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-cli
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-common
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-dba
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-devel
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-embedded
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-enchant
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-fpm
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-gd
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-imap
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-intl
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-ldap
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-mbstring
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-mysql
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-odbc
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-pdo
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-pgsql
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-process
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-pspell
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-recode
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-snmp
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-soap
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-tidy
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-xml
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-xmlrpc
Fixed versions: 5.3.3-55.el6.cloudlinux.els
php-zts
Fixed versions: 5.3.3-55.el6.cloudlinux.els
Complete source record
{
"id": "8114112fc457f3228e4893b2c9d6576eaac1bf8fab6867a4d3ac003a7b0b5735",
"url": "https://osv.dev/vulnerability/CLSA-2021-1637673193",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix of CVE: CVE-2021-21704, CVE-2021-21703, CVE-2021-21705",
"summary": "- CVE-2021-21704: fix integer overflow and subsequent incorrect buffer allocation - CVE-2021-21705: fix incorrect url password validation - CVE-2021-21703: fix incorrect shared memory management, which led to priv escalation",
"evidence": "osv:CLSA-2021-1637673193",
"products": [
{
"name": {
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"evidence": "/affected/0/package/name"
},
"prerequisites": [],
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{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
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"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
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{
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"evidence": "/affected/2/package/name"
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"prerequisites": [],
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{
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"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/3/package/name"
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"prerequisites": [],
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{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-dba",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-devel",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-embedded",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-enchant",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-fpm",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-gd",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-imap",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-intl",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-ldap",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-mbstring",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-mysql",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-odbc",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/15/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-pdo",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-pgsql",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-process",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/18/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-pspell",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/19/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-recode",
"evidence": "/affected/20/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/20/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-snmp",
"evidence": "/affected/21/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/21/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-soap",
"evidence": "/affected/22/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/22/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-tidy",
"evidence": "/affected/23/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/23/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-xml",
"evidence": "/affected/24/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/24/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-xmlrpc",
"evidence": "/affected/25/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/25/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-zts",
"evidence": "/affected/26/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.3-55.el6.cloudlinux.els",
"evidence": "/affected/26/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2021-1637673193",
"aliases": [
"CLSA-2021-1637673193"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php",
"purl": "pkg:rpm/tuxcare/php?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
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"events": [
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{
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}
],
"package": {
"name": "php-bcmath",
"purl": "pkg:rpm/tuxcare/php-bcmath?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
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],
"package": {
"name": "php-cli",
"purl": "pkg:rpm/tuxcare/php-cli?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
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}
],
"package": {
"name": "php-common",
"purl": "pkg:rpm/tuxcare/php-common?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
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{
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]
}
],
"package": {
"name": "php-dba",
"purl": "pkg:rpm/tuxcare/php-dba?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "php-devel",
"purl": "pkg:rpm/tuxcare/php-devel?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-embedded",
"purl": "pkg:rpm/tuxcare/php-embedded?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-enchant",
"purl": "pkg:rpm/tuxcare/php-enchant?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-fpm",
"purl": "pkg:rpm/tuxcare/php-fpm?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-gd",
"purl": "pkg:rpm/tuxcare/php-gd?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-imap",
"purl": "pkg:rpm/tuxcare/php-imap?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-intl",
"purl": "pkg:rpm/tuxcare/php-intl?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-ldap",
"purl": "pkg:rpm/tuxcare/php-ldap?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-mbstring",
"purl": "pkg:rpm/tuxcare/php-mbstring?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-mysql",
"purl": "pkg:rpm/tuxcare/php-mysql?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-odbc",
"purl": "pkg:rpm/tuxcare/php-odbc?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-pdo",
"purl": "pkg:rpm/tuxcare/php-pdo?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.3-55.el6.cloudlinux.els"
}
]
}
],
"package": {
"name": "php-pgsql",
"purl": "pkg:rpm/tuxcare/php-pgsql?distro=centos-6",
"ecosystem": "TuxCare:CentOS:6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2021-1637673193.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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],
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},
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],
"package": {
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"ecosystem": "TuxCare:CentOS:6"
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}
],
"modified": "2026-10-21T10:47:40.952403031Z",
"provider": "osv",
"upstream": [
"CVE-2021-21703",
"CVE-2021-21704",
"CVE-2021-21705"
],
"references": [
"https://errata.cloudlinux.com/els6/CLSA-2021-1637673193.html"
]
},
"related_cves": [
{
"value": "CVE-2021-21703",
"evidence": "/upstream"
},
{
"value": "CVE-2021-21704",
"evidence": "/upstream"
},
{
"value": "CVE-2021-21705",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 392363,
"published_at": "2021-11-23T13:13:13+00:00"
}