Vulnerability-Lookup

ubuntu-cve-2021-21424

Vulnerability from osv_ubuntu

Published

2021-05-13 16:15

Modified

2025-07-16 04:56

Summary

Details

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.

Severity

5.3 (Medium)


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

5.3 (Medium)


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

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2021-21424	REPORT
	https://symfony.com/blog/cve-2021-21424-prevent-u…	REPORT
	https://github.com/symfony/symfony/commit/f012eee…	REPORT
	https://github.com/symfony/symfony/commit/2a581d2…	REPORT
	https://github.com/symfony/symfony/security/advis…	REPORT
	https://ubuntu.com/security/notices/USN-5290-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2021-21424	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "php-symfony",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-asset",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-browser-kit",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-cache",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-class-loader",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-config",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-console",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-css-selector",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-debug",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-debug-bundle",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-dependency-injection",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-doctrine-bridge",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-dom-crawler",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-dotenv",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-event-dispatcher",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-expression-language",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-filesystem",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-finder",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-form",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-framework-bundle",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-http-foundation",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-http-kernel",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-inflector",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-intl",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-ldap",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-lock",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-monolog-bridge",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-options-resolver",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-phpunit-bridge",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-process",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-property-access",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-property-info",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-proxy-manager-bridge",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-routing",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-security",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-security-bundle",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-security-core",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-security-csrf",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-security-guard",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-security-http",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-serializer",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-stopwatch",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-templating",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-translation",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-twig-bridge",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-twig-bundle",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-validator",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-var-dumper",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-web-link",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-web-profiler-bundle",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-web-server-bundle",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-workflow",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          },
          {
            "binary_name": "php-symfony-yaml",
            "binary_version": "3.4.6+dfsg-1ubuntu0.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "symfony",
        "purl": "pkg:deb/ubuntu/symfony@3.4.6+dfsg-1ubuntu0.1+esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.6+dfsg-1ubuntu0.1+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.8.7+dfsg-1.3ubuntu1",
        "3.4.3+dfsg-1ubuntu4",
        "3.4.6+dfsg-1",
        "3.4.6+dfsg-1ubuntu0.1",
        "3.4.6+dfsg-1ubuntu0.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "php-symfony",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
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            "binary_name": "php-symfony-amazon-mailer",
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          },
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            "binary_name": "php-symfony-asset",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-browser-kit",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-cache",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-config",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-console",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-css-selector",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-debug",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-debug-bundle",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-dependency-injection",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-doctrine-bridge",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-dom-crawler",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-dotenv",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-event-dispatcher",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-expression-language",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-filesystem",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-finder",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-form",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
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            "binary_name": "php-symfony-framework-bundle",
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            "binary_name": "php-symfony-google-mailer",
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          },
          {
            "binary_name": "php-symfony-http-client",
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          },
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            "binary_name": "php-symfony-http-foundation",
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          },
          {
            "binary_name": "php-symfony-http-kernel",
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            "binary_name": "php-symfony-inflector",
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          },
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            "binary_name": "php-symfony-intl",
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          },
          {
            "binary_name": "php-symfony-ldap",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-lock",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-mailchimp-mailer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-mailer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-mailgun-mailer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-messenger",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-mime",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
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            "binary_name": "php-symfony-monolog-bridge",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
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            "binary_name": "php-symfony-options-resolver",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
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            "binary_name": "php-symfony-phpunit-bridge",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
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            "binary_name": "php-symfony-postmark-mailer",
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          },
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            "binary_name": "php-symfony-process",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-property-access",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-property-info",
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            "binary_name": "php-symfony-proxy-manager-bridge",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
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            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
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            "binary_name": "php-symfony-security",
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            "binary_name": "php-symfony-security-core",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
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            "binary_name": "php-symfony-security-csrf",
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            "binary_name": "php-symfony-security-guard",
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            "binary_name": "php-symfony-security-http",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-sendgrid-mailer",
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          },
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            "binary_name": "php-symfony-serializer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
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            "binary_name": "php-symfony-stopwatch",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
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            "binary_name": "php-symfony-templating",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-translation",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-twig-bridge",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-twig-bundle",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-validator",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-var-dumper",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-var-exporter",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-web-link",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-web-profiler-bundle",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-web-server-bundle",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-workflow",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-yaml",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "symfony",
        "purl": "pkg:deb/ubuntu/symfony@4.3.8+dfsg-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.8+dfsg-1ubuntu1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3.4+dfsg-1ubuntu1",
        "4.3.8+dfsg-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.",
  "id": "UBUNTU-CVE-2021-21424",
  "modified": "2025-07-16T04:56:59Z",
  "published": "2021-05-13T16:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-21424"
    },
    {
      "type": "REPORT",
      "url": "https://symfony.com/blog/cve-2021-21424-prevent-user-enumeration-in-authentication-mechanisms"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/symfony/symfony/commit/f012eee6c6034a94566dff596fe4e16dfc5d9c1f"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-5pv8-ppvj-4h68"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5290-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-21424"
    }
  ],
  "related": [
    "USN-5290-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-21424"
  ]
}

CVE-2021-21424 (GCVE-0-2021-21424)

Vulnerability from cvelistv5 – Published: 2021-05-13 00:00 – Updated: 2024-08-03 18:09

Title

Prevent user enumeration using Guard or the new Authenticator-based Security

Summary

Severity

5.3 (Medium)


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

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M

References

7 references

URL	Tags
https://github.com/symfony/symfony/security/advis…
https://github.com/symfony/symfony/commit/2a581d2…
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Impacted products

1 product

Vendor	Product	Version
symfony	symfony	Affected: >= 2.8.0, < 3.4.48 Affected: >= 4.0.0, < 4.4.23 Affected: >= 5.0.0, < 5.2.8

Show details on NVD website

JSON

To clipboard

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    "state": "PUBLISHED"
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usn-5290-1

Vulnerability from osv_ubuntu

Published

2022-08-24 11:38

Modified

2026-02-10 04:42

Summary

symfony vulnerabilities

Details

James Isaac and Mathias Brodala discovered that Symfony incorrectly handled switch users functionality. An attacker could possibly use this issue to enumerate users. (CVE-2021-21424)

It was discovered that Symfony incorrectly handled certain specially crafted CSV files. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 20.04 ESM. (CVE-2021-41270)

References

URL

Type

	https://ubuntu.com/security/notices/USN-5290-1	ADVISORY
	https://ubuntu.com/security/CVE-2021-21424	REPORT
	https://ubuntu.com/security/CVE-2021-41270	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-21424",
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                }
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            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-google-mailer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-http-client",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-http-foundation",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-http-kernel",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-inflector",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-intl",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-ldap",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-lock",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-mailchimp-mailer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-mailer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-mailgun-mailer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-messenger",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-mime",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-monolog-bridge",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-options-resolver",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-phpunit-bridge",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-postmark-mailer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-process",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-property-access",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-property-info",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-proxy-manager-bridge",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-routing",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-security",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-security-bundle",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-security-core",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-security-csrf",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-security-guard",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-security-http",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-sendgrid-mailer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-serializer",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-stopwatch",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-templating",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-translation",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-twig-bridge",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-twig-bundle",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-validator",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-var-dumper",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-var-exporter",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-web-link",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-web-profiler-bundle",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-web-server-bundle",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-workflow",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "php-symfony-yaml",
            "binary_version": "4.3.8+dfsg-1ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "symfony",
        "purl": "pkg:deb/ubuntu/symfony@4.3.8+dfsg-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.8+dfsg-1ubuntu1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3.4+dfsg-1ubuntu1",
        "4.3.8+dfsg-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "James Isaac and Mathias Brodala discovered that Symfony incorrectly handled\nswitch users functionality. An attacker could possibly use this issue to\nenumerate users. (CVE-2021-21424)\n\nIt was discovered that Symfony incorrectly handled certain specially crafted\nCSV files. An attacker could possibly use this issue to execute arbitrary\ncode. This issue only affected Ubuntu 20.04 ESM. (CVE-2021-41270)\n",
  "id": "USN-5290-1",
  "modified": "2026-02-10T04:42:29Z",
  "published": "2022-08-24T11:38:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5290-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-21424"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-41270"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "symfony vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-21424",
    "UBUNTU-CVE-2021-41270"
  ]
}

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.

Action not permitted

ubuntu-cve-2021-21424

Vulnerability from osv_ubuntu

CVE-2021-21424 (GCVE-0-2021-21424)

usn-5290-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature