{"id":"UBUNTU-CVE-2018-14773","details":"An issue was discovered in Http Foundation in Symfony 2.7.0 through 2.7.48, 2.8.0 through 2.8.43, 3.3.0 through 3.3.17, 3.4.0 through 3.4.13, 4.0.0 through 4.0.13, and 4.1.0 through 4.1.2. It arises from support for a (legacy) IIS header that lets users override the path in the request URL via the X-Original-URL or X-Rewrite-URL HTTP request header. These headers are designed for IIS support, but it's not verified that the server is in fact running IIS, which means anybody who can send these requests to an application can trigger this. This affects \\Symfony\\Component\\HttpFoundation\\Request::prepareRequestUri() where X-Original-URL and X_REWRITE_URL are both used. The fix drops support for these methods so that they cannot be used as attack vectors such as web cache poisoning.","modified":"2025-10-24T04:47:10Z","published":"2018-08-03T17:29:00Z","upstream":["CVE-2018-14773"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-14773"},{"type":"REPORT","url":"https://symfony.com/blog/cve-2018-14773-remove-support-for-legacy-and-risky-http-headers"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-14773"}],"affected":[{"package":{"name":"symfony","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/symfony@2.7.10-0ubuntu2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.1+dfsg-1","2.7.5+dfsg-1","2.7.9+dfsg-1","2.7.9+dfsg-1ubuntu2","2.7.10-0ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-asset"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-browser-kit"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-class-loader"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-config"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-console"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-css-selector"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-debug"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-debug-bundle"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-dependency-injection"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-doctrine-bridge"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-dom-crawler"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-event-dispatcher"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-expression-language"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-filesystem"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-finder"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-form"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-framework-bundle"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-http-foundation"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-http-kernel"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-intl"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-locale"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-monolog-bridge"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-options-resolver"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-phpunit-bridge"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-process"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-property-access"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-proxy-manager-bridge"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-routing"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-security"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-security-bundle"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-serializer"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-stopwatch"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-swiftmailer-bridge"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-templating"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-translation"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-twig-bridge"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-twig-bundle"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-validator"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-var-dumper"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-web-profiler-bundle"},{"binary_version":"2.7.10-0ubuntu2","binary_name":"php-symfony-yaml"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-14773.json"}},{"package":{"name":"symfony","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/symfony@3.4.6+dfsg-1ubuntu0.1+esm2?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","3.4.6+dfsg-1ubuntu0.1+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.4.6+dfsg-1ubuntu0.1+esm2","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_nam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