{"answers":{"affected":"16 open source packages ship an affected version, including symfony/http-kernel and symfony/symfony. It affects 2 products.","exploited":"There is no known exploitation of CVE-2019-18887 in the wild and no public exploit code.","fix":"Upgrade symfony/http-kernel to a fixed version for your release line: 2.8.52, 3.4.35, 4.2.12 or 4.3.8.","what":"CVE-2019-18887 is a high-severity vulnerability in Fedoraproject Fedora, published on 21 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-18887 and fix it if it is affected.\n\nWhat it is: CVE-2019-18887 is a high-severity vulnerability in Fedoraproject Fedora, published on 21 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-18887 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- symfony/http-kernel (Packagist): affected from 2.2.0; fixed in 2.8.52\n- symfony/http-kernel (Packagist): affected from 2.2.0; fixed in 2.8.52\n- symfony/http-kernel (Packagist): affected from 3.0.0; fixed in 3.4.35\n- symfony/http-kernel (Packagist): affected from 3.0.0; fixed in 3.4.35\n- symfony/http-kernel (Packagist): affected from 4.0.0; fixed in 4.2.12\n- symfony/http-kernel (Packagist): affected from 4.0.0; fixed in 4.2.12\n- symfony/http-kernel (Packagist): affected from 4.3.0; fixed in 4.3.8\n- symfony/http-kernel (Packagist): affected from 4.3.0; fixed in 4.3.8\n- symfony/symfony (Packagist): affected from 2.2.0; fixed in 2.8.52\n- symfony/symfony (Packagist): affected from 2.2.0; fixed in 2.8.52\n- symfony/symfony (Packagist): affected from 3.0.0; fixed in 3.4.35\n- symfony/symfony (Packagist): affected from 3.0.0; fixed in 3.4.35\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2019-18887/ (Markdown: https://insights.sbomify.com/CVE-2019-18887/index.md)","id":"CVE-2019-18887","markdown":"https://insights.sbomify.com/CVE-2019-18887/index.md","name":"CVE-2019-18887","record":{"aliases":["DEBIAN-CVE-2019-18887","GHSA-q8hg-pf8v-cxrv","UBUNTU-CVE-2019-18887"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Symfony HTTP Kernel","requires_auth":"none","summary":"Attackers can exploit timing attacks in Symfony's UriSigner to bypass security checks, requiring an upgrade to patched versions.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"symfony","vendor":"sensiolabs"}],"cvss":{"score":8.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-203","name":"Observable Discrepancy"}],"description":"An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. The UriSigner was subject to timing attacks. This is related to symfony/http-kernel.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Symfony Http-Kernel has non-constant time comparison in UriSigner","id":"CVE-2019-18887","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"fedoraproject:fedora","products":["fedoraproject:fedora","sensiolabs:symfony"],"type":"other","year":"2019"},"n_packages":16,"n_references":6,"next":{"headline":"Argument injection in a MimeTypeGuesser in Symfony","id":"CVE-2019-18888"},"packages":[{"ecosystem":"Packagist","fixed":["2.8.52"],"introduced":["2.2.0"],"last_affected":[],"package":"symfony/http-kernel","purl":null,"source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["2.8.52"],"introduced":["2.2.0"],"last_affected":[],"package":"symfony/http-kernel","purl":"pkg:composer/symfony/http-kernel","source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["3.4.35"],"introduced":["3.0.0"],"last_affected":[],"package":"symfony/http-kernel","purl":null,"source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["3.4.35"],"introduced":["3.0.0"],"last_affected":[],"package":"symfony/http-kernel","purl":"pkg:composer/symfony/http-kernel","source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["4.2.12"],"introduced":["4.0.0"],"last_affected":[],"package":"symfony/http-kernel","purl":null,"source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["4.2.12"],"introduced":["4.0.0"],"last_affected":[],"package":"symfony/http-kernel","purl":"pkg:composer/symfony/http-kernel","source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["4.3.8"],"introduced":["4.3.0"],"last_affected":[],"package":"symfony/http-kernel","purl":null,"source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["4.3.8"],"introduced":["4.3.0"],"last_affected":[],"package":"symfony/http-kernel","purl":"pkg:composer/symfony/http-kernel","source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["2.8.52"],"introduced":["2.2.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["2.8.52"],"introduced":["2.2.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["3.4.35"],"introduced":["3.0.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["3.4.35"],"introduced":["3.0.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["4.2.12"],"introduced":["4.0.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["4.2.12"],"introduced":["4.0.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["4.3.8"],"introduced":["4.3.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-q8hg-pf8v-cxrv"},{"ecosystem":"Packagist","fixed":["4.3.8"],"introduced":["4.3.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-q8hg-pf8v-cxrv"}],"prev":{"headline":"User enumeration leak using switch user functionality in Symfony","id":"CVE-2019-18886"},"products":["n/a"],"published":"2019-11-21","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can exploit timing attacks in Symfony's UriSigner to bypass security checks, requiring an upgrade to patched versions.","url":"https://insights.sbomify.com/CVE-2019-18887/"}