Vulnerability-Lookup

ubuntu-cve-2021-21703

Vulnerability from osv_ubuntu

Published

2021-10-21 00:00

Modified

2026-04-22 07:39

Summary

Details

In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.

Severity

7.0 (High)


                    
                      CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 (High)


                    
                      CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      high

References

URL

Type

	https://ubuntu.com/security/CVE-2021-21703	REPORT
	https://github.com/php/php-src/commit/fadb1f8c1d0…	REPORT
	https://www.ambionics.io/blog/php-fpm-local-root	REPORT
	https://ubuntu.com/security/notices/USN-5125-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2021-21703	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libapache2-mod-php5",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "libapache2-mod-php5filter",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "libphp5-embed",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php-pear",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-cgi",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-cli",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-common",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-curl",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-enchant",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-fpm",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-gd",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-gmp",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-intl",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-ldap",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-mysql",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-mysqlnd",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-odbc",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-pgsql",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-pspell",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-readline",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-recode",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-snmp",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-sqlite",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-sybase",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-tidy",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-xmlrpc",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-xsl",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "php5",
        "purl": "pkg:deb/ubuntu/php5@5.5.9+dfsg-1ubuntu4.29+esm15?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.5.9+dfsg-1ubuntu4.29+esm15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.5.3+dfsg-1ubuntu2",
        "5.5.3+dfsg-1ubuntu3",
        "5.5.6+dfsg-1ubuntu1",
        "5.5.6+dfsg-1ubuntu2",
        "5.5.8+dfsg-2ubuntu1",
        "5.5.9+dfsg-1ubuntu1",
        "5.5.9+dfsg-1ubuntu2",
        "5.5.9+dfsg-1ubuntu3",
        "5.5.9+dfsg-1ubuntu4",
        "5.5.9+dfsg-1ubuntu4.1",
        "5.5.9+dfsg-1ubuntu4.2",
        "5.5.9+dfsg-1ubuntu4.3",
        "5.5.9+dfsg-1ubuntu4.4",
        "5.5.9+dfsg-1ubuntu4.5",
        "5.5.9+dfsg-1ubuntu4.6",
        "5.5.9+dfsg-1ubuntu4.7",
        "5.5.9+dfsg-1ubuntu4.9",
        "5.5.9+dfsg-1ubuntu4.11",
        "5.5.9+dfsg-1ubuntu4.12",
        "5.5.9+dfsg-1ubuntu4.13",
        "5.5.9+dfsg-1ubuntu4.14",
        "5.5.9+dfsg-1ubuntu4.16",
        "5.5.9+dfsg-1ubuntu4.17",
        "5.5.9+dfsg-1ubuntu4.19",
        "5.5.9+dfsg-1ubuntu4.20",
        "5.5.9+dfsg-1ubuntu4.21",
        "5.5.9+dfsg-1ubuntu4.22",
        "5.5.9+dfsg-1ubuntu4.23",
        "5.5.9+dfsg-1ubuntu4.24",
        "5.5.9+dfsg-1ubuntu4.25",
        "5.5.9+dfsg-1ubuntu4.26",
        "5.5.9+dfsg-1ubuntu4.27",
        "5.5.9+dfsg-1ubuntu4.29",
        "5.5.9+dfsg-1ubuntu4.29+esm1",
        "5.5.9+dfsg-1ubuntu4.29+esm2",
        "5.5.9+dfsg-1ubuntu4.29+esm3",
        "5.5.9+dfsg-1ubuntu4.29+esm4",
        "5.5.9+dfsg-1ubuntu4.29+esm5",
        "5.5.9+dfsg-1ubuntu4.29+esm6",
        "5.5.9+dfsg-1ubuntu4.29+esm8",
        "5.5.9+dfsg-1ubuntu4.29+esm10",
        "5.5.9+dfsg-1ubuntu4.29+esm11",
        "5.5.9+dfsg-1ubuntu4.29+esm12",
        "5.5.9+dfsg-1ubuntu4.29+esm13",
        "5.5.9+dfsg-1ubuntu4.29+esm14"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libapache2-mod-php7.0",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "libphp7.0-embed",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-bcmath",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-bz2",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-cgi",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-cli",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-common",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-curl",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-dba",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-enchant",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-fpm",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-gd",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-gmp",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-imap",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-interbase",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-intl",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-json",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-ldap",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-mbstring",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-mcrypt",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-mysql",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-odbc",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-opcache",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-pgsql",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-phpdbg",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-pspell",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-readline",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-recode",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-snmp",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-soap",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-sqlite3",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-sybase",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-tidy",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-xml",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-xmlrpc",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-xsl",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-zip",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "php7.0",
        "purl": "pkg:deb/ubuntu/php7.0@7.0.33-0ubuntu0.16.04.16+esm2?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.33-0ubuntu0.16.04.16+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.0.1-5",
        "7.0.1-6",
        "7.0.2-1",
        "7.0.2-3",
        "7.0.2-4",
        "7.0.2-5",
        "7.0.3-2",
        "7.0.3-3",
        "7.0.3-9ubuntu1",
        "7.0.4-5ubuntu1",
        "7.0.4-5ubuntu2",
        "7.0.4-7ubuntu1",
        "7.0.4-7ubuntu2",
        "7.0.4-7ubuntu2.1",
        "7.0.8-0ubuntu0.16.04.1",
        "7.0.8-0ubuntu0.16.04.2",
        "7.0.8-0ubuntu0.16.04.3",
        "7.0.13-0ubuntu0.16.04.1",
        "7.0.15-0ubuntu0.16.04.1",
        "7.0.15-0ubuntu0.16.04.2",
        "7.0.15-0ubuntu0.16.04.4",
        "7.0.18-0ubuntu0.16.04.1",
        "7.0.22-0ubuntu0.16.04.1",
        "7.0.25-0ubuntu0.16.04.1",
        "7.0.28-0ubuntu0.16.04.1",
        "7.0.30-0ubuntu0.16.04.1",
        "7.0.32-0ubuntu0.16.04.1",
        "7.0.33-0ubuntu0.16.04.1",
        "7.0.33-0ubuntu0.16.04.2",
        "7.0.33-0ubuntu0.16.04.3",
        "7.0.33-0ubuntu0.16.04.4",
        "7.0.33-0ubuntu0.16.04.5",
        "7.0.33-0ubuntu0.16.04.6",
        "7.0.33-0ubuntu0.16.04.7",
        "7.0.33-0ubuntu0.16.04.9",
        "7.0.33-0ubuntu0.16.04.11",
        "7.0.33-0ubuntu0.16.04.12",
        "7.0.33-0ubuntu0.16.04.14",
        "7.0.33-0ubuntu0.16.04.15",
        "7.0.33-0ubuntu0.16.04.16",
        "7.0.33-0ubuntu0.16.04.16+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libapache2-mod-php7.2",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "libphp7.2-embed",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-bcmath",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-bz2",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-cgi",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-cli",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-common",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-curl",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-dba",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-enchant",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-fpm",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-gd",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-gmp",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-imap",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-interbase",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-intl",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-json",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-ldap",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-mbstring",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-mysql",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-odbc",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-opcache",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-pgsql",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-phpdbg",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-pspell",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-readline",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-recode",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-snmp",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-soap",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-sqlite3",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-sybase",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-tidy",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-xml",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-xmlrpc",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-xsl",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          },
          {
            "binary_name": "php7.2-zip",
            "binary_version": "7.2.24-0ubuntu0.18.04.10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "php7.2",
        "purl": "pkg:deb/ubuntu/php7.2@7.2.24-0ubuntu0.18.04.10?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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CVE-2021-21703 (GCVE-0-2021-21703)

Vulnerability from cvelistv5 – Published: 2021-10-25 05:40 – Updated: 2024-09-17 03:02

Title

PHP-FPM memory access in root process leading to privilege escalation

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE

CWE-787 - Out-of-bounds Write
CWE-284 - Improper Access Control

Assigner

php mitre root

References

12 references

URL	Tags
https://bugs.php.net/bug.php?id=81026	x_refsource_MISC
https://www.debian.org/security/2021/dsa-4992	vendor-advisoryx_refsource_DEBIAN
https://www.debian.org/security/2021/dsa-4993	vendor-advisoryx_refsource_DEBIAN
http://www.openwall.com/lists/oss-security/2021/10/26/7	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021111…	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://security.gentoo.org/glsa/202209-20	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
PHP Group	PHP	Affected: 7.3.x , ≤ 7.3.31 (custom) Affected: 7.4.x , < 7.4.25 (custom) Affected: 8.0.X , < 8.0.12 (custom)

Date Public

2021-10-18 00:00

Credits

Reported by Charles Fol

Show details on NVD website

JSON

To clipboard

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            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-787 Out-of-bounds Write"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-284 Improper Access Control"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugs.php.net/bug.php?id=81026",
              "refsource": "MISC",
              "url": "https://bugs.php.net/bug.php?id=81026"
            },
            {
              "name": "DSA-4992",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-4992"
            },
            {
              "name": "DSA-4993",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-4993"
            },
            {
              "name": "[oss-security] 20211026 CVE-2021-21703: PHP-FPM 5.3.7 \u003c= 8.0.12 Local Root",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/10/26/7"
            },
            {
              "name": "[debian-lts-announce] 20211027 [SECURITY] [DLA 2794-1] php7.0 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00021.html"
            },
            {
              "name": "FEDORA-2021-9f68f5f752",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JO5RA6YOBGGGKLIA6F6BQRZDDECF5L3R/"
            },
            {
              "name": "FEDORA-2021-4140b54de2",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PBM3KKB3RY2YPOKNMC4HIH7IH3T3WC74/"
            },
            {
              "name": "FEDORA-2021-02d218c3be",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6PZVLICZUJMXOGWOUWSBAEGIVTF6Y6V3/"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujan2022.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20211118-0003/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20211118-0003/"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuapr2022.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
            },
            {
              "name": "GLSA-202209-20",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202209-20"
            }
          ]
        },
        "source": {
          "defect": [
            "https://bugs.php.net/bug.php?id=81026"
          ],
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
    "assignerShortName": "php",
    "cveId": "CVE-2021-21703",
    "datePublished": "2021-10-25T05:40:08.576Z",
    "dateReserved": "2021-01-04T00:00:00.000Z",
    "dateUpdated": "2024-09-17T03:02:55.020Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

usn-5125-1

Vulnerability from osv_ubuntu

Published

2021-10-27 21:50

Modified

2026-06-29 10:52

Summary

php5, php7.0, php7.2, php7.4, php8.0 vulnerability

Details

It was discovered that PHP-FPM in PHP incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash or execute arbitrary code.

References

URL

Type

	https://ubuntu.com/security/notices/USN-5125-1	ADVISORY
	https://ubuntu.com/security/CVE-2021-21703	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-21703",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libapache2-mod-php5",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "libapache2-mod-php5filter",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "libphp5-embed",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php-pear",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-cgi",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-cli",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-common",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-curl",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-enchant",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-fpm",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-gd",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-gmp",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-intl",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-ldap",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-mysql",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-mysqlnd",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-odbc",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-pgsql",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-pspell",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-readline",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-recode",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-snmp",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-sqlite",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-sybase",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-tidy",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-xmlrpc",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          },
          {
            "binary_name": "php5-xsl",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm15"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "php5",
        "purl": "pkg:deb/ubuntu/php5@5.5.9+dfsg-1ubuntu4.29+esm15?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.5.9+dfsg-1ubuntu4.29+esm15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.5.3+dfsg-1ubuntu2",
        "5.5.3+dfsg-1ubuntu3",
        "5.5.6+dfsg-1ubuntu1",
        "5.5.6+dfsg-1ubuntu2",
        "5.5.8+dfsg-2ubuntu1",
        "5.5.9+dfsg-1ubuntu1",
        "5.5.9+dfsg-1ubuntu2",
        "5.5.9+dfsg-1ubuntu3",
        "5.5.9+dfsg-1ubuntu4",
        "5.5.9+dfsg-1ubuntu4.1",
        "5.5.9+dfsg-1ubuntu4.2",
        "5.5.9+dfsg-1ubuntu4.3",
        "5.5.9+dfsg-1ubuntu4.4",
        "5.5.9+dfsg-1ubuntu4.5",
        "5.5.9+dfsg-1ubuntu4.6",
        "5.5.9+dfsg-1ubuntu4.7",
        "5.5.9+dfsg-1ubuntu4.9",
        "5.5.9+dfsg-1ubuntu4.11",
        "5.5.9+dfsg-1ubuntu4.12",
        "5.5.9+dfsg-1ubuntu4.13",
        "5.5.9+dfsg-1ubuntu4.14",
        "5.5.9+dfsg-1ubuntu4.16",
        "5.5.9+dfsg-1ubuntu4.17",
        "5.5.9+dfsg-1ubuntu4.19",
        "5.5.9+dfsg-1ubuntu4.20",
        "5.5.9+dfsg-1ubuntu4.21",
        "5.5.9+dfsg-1ubuntu4.22",
        "5.5.9+dfsg-1ubuntu4.23",
        "5.5.9+dfsg-1ubuntu4.24",
        "5.5.9+dfsg-1ubuntu4.25",
        "5.5.9+dfsg-1ubuntu4.26",
        "5.5.9+dfsg-1ubuntu4.27",
        "5.5.9+dfsg-1ubuntu4.29",
        "5.5.9+dfsg-1ubuntu4.29+esm1",
        "5.5.9+dfsg-1ubuntu4.29+esm2",
        "5.5.9+dfsg-1ubuntu4.29+esm3",
        "5.5.9+dfsg-1ubuntu4.29+esm4",
        "5.5.9+dfsg-1ubuntu4.29+esm5",
        "5.5.9+dfsg-1ubuntu4.29+esm6",
        "5.5.9+dfsg-1ubuntu4.29+esm8",
        "5.5.9+dfsg-1ubuntu4.29+esm10",
        "5.5.9+dfsg-1ubuntu4.29+esm11",
        "5.5.9+dfsg-1ubuntu4.29+esm12",
        "5.5.9+dfsg-1ubuntu4.29+esm13",
        "5.5.9+dfsg-1ubuntu4.29+esm14"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-21703",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libapache2-mod-php7.0",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "libphp7.0-embed",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-bcmath",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-bz2",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-cgi",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-cli",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-common",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-curl",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-dba",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-enchant",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-fpm",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-gd",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-gmp",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-imap",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-interbase",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-intl",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-json",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-ldap",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-mbstring",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-mcrypt",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-mysql",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-odbc",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-opcache",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-pgsql",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-phpdbg",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-pspell",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-readline",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-recode",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-snmp",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-soap",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-sqlite3",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-sybase",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-tidy",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-xml",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-xmlrpc",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-xsl",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          },
          {
            "binary_name": "php7.0-zip",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "php7.0",
        "purl": "pkg:deb/ubuntu/php7.0@7.0.33-0ubuntu0.16.04.16+esm2?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.33-0ubuntu0.16.04.16+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.0.1-5",
        "7.0.1-6",
        "7.0.2-1",
        "7.0.2-3",
        "7.0.2-4",
        "7.0.2-5",
        "7.0.3-2",
        "7.0.3-3",
        "7.0.3-9ubuntu1",
        "7.0.4-5ubuntu1",
        "7.0.4-5ubuntu2",
        "7.0.4-7ubuntu1",
        "7.0.4-7ubuntu2",
        "7.0.4-7ubuntu2.1",
        "7.0.8-0ubuntu0.16.04.1",
        "7.0.8-0ubuntu0.16.04.2",
        "7.0.8-0ubuntu0.16.04.3",
        "7.0.13-0ubuntu0.16.04.1",
        "7.0.15-0ubuntu0.16.04.1",
        "7.0.15-0ubuntu0.16.04.2",
        "7.0.15-0ubuntu0.16.04.4",
        "7.0.18-0ubuntu0.16.04.1",
        "7.0.22-0ubuntu0.16.04.1",
        "7.0.25-0ubuntu0.16.04.1",
        "7.0.28-0ubuntu0.16.04.1",
        "7.0.30-0ubuntu0.16.04.1",
        "7.0.32-0ubuntu0.16.04.1",
        "7.0.33-0ubuntu0.16.04.1",
        "7.0.33-0ubuntu0.16.04.2",
        "7.0.33-0ubuntu0.16.04.3",
        "7.0.33-0ubuntu0.16.04.4",
        "7.0.33-0ubuntu0.16.04.5",
        "7.0.33-0ubuntu0.16.04.6",
        "7.0.33-0ubuntu0.16.04.7",
        "7.0.33-0ubuntu0.16.04.9",
        "7.0.33-0ubuntu0.16.04.11",
        "7.0.33-0ubuntu0.16.04.12",
        "7.0.33-0ubuntu0.16.04.14",
        "7.0.33-0ubuntu0.16.04.15",
        "7.0.33-0ubuntu0.16.04.16",
        "7.0.33-0ubuntu0.16.04.16+esm1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-21703",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
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        }
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      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "7.2.2-1ubuntu1",
        "7.2.2-1ubuntu2",
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        "7.2.7-0ubuntu0.18.04.2",
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        "7.2.24-0ubuntu0.18.04.6",
        "7.2.24-0ubuntu0.18.04.7",
        "7.2.24-0ubuntu0.18.04.8",
        "7.2.24-0ubuntu0.18.04.9"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-21703",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
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            "binary_version": "7.4.3-4ubuntu2.7"
          },
          {
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          },
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            "binary_name": "php7.4-pgsql",
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          },
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            "binary_name": "php7.4-phpdbg",
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          },
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          },
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          }
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        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "php7.4",
        "purl": "pkg:deb/ubuntu/php7.4@7.4.3-4ubuntu2.7?arch=source\u0026distro=focal"
      },
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        {
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            {
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        "7.4.3-4build1",
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        "7.4.3-4ubuntu1",
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        "7.4.3-4ubuntu2.2",
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        "7.4.3-4ubuntu2.5",
        "7.4.3-4ubuntu2.6"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that PHP-FPM in PHP incorrectly handled certain inputs.\nAn attacker could possibly use this issue to cause a crash or execute\narbitrary code.\n",
  "id": "USN-5125-1",
  "modified": "2026-06-29T10:52:52Z",
  "published": "2021-10-27T21:50:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5125-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-21703"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "php5, php7.0, php7.2, php7.4, php8.0 vulnerability",
  "upstream": [
    "UBUNTU-CVE-2021-21703"
  ]
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

ubuntu-cve-2021-21703

Vulnerability from osv_ubuntu

CVE-2021-21703 (GCVE-0-2021-21703)

usn-5125-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour