{"answers":{"affected":"3 open source packages ship an affected version, including silverstripe/framework and silverstripe. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-41559 in the wild and no public exploit code.","fix":"Upgrade silverstripe/framework to 4.10.9 or later.","what":"CVE-2021-41559 is a medium-severity denial of service vulnerability in Silverstripe Silverstripe, published on 28 Jun 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-41559 and fix it if it is affected.\n\nWhat it is: CVE-2021-41559 is a medium-severity denial of service vulnerability in Silverstripe Silverstripe, published on 28 Jun 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-41559 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- silverstripe/framework (Packagist): affected from 4.0.0; fixed in 4.10.9\n- silverstripe/framework (Packagist): affected from 4.0.0; fixed in 4.10.9\n- silverstripe (Bitnami): affected all versions; fixed in 4.10.9\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-2021-41559/ (Markdown: https://insights.sbomify.com/CVE-2021-41559/index.md)","id":"CVE-2021-41559","markdown":"https://insights.sbomify.com/CVE-2021-41559/index.md","name":"CVE-2021-41559","record":{"aliases":["BIT-silverstripe-2021-41559","GHSA-9fmg-89fx-r33w"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Silverstripe framework","requires_auth":"none","summary":"A remote attacker can cause a denial of service in Silverstripe framework by sending a crafted XML document that triggers quadratic blowup.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"silverstripe","vendor":"silverstripe"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-776","name":"Improper Restriction of Recursive Entity References in DTDs"}],"description":"Silverstripe silverstripe/framework 4.8.1 has a quadratic blowup in Convert::xml2array() that enables a remote attack via a crafted XML document.","ecosystems":["Bitnami","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":"Quadratic blowup in Convert::xml2array()","id":"CVE-2021-41559","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"silverstripe:silverstripe","products":["silverstripe:silverstripe"],"type":"denial_of_service","year":"2021"},"n_packages":3,"n_references":3,"next":{"headline":"File upload in n/a","id":"CVE-2021-41560"},"packages":[{"ecosystem":"Bitnami","fixed":["4.10.9"],"introduced":["0"],"last_affected":[],"package":"silverstripe","purl":"pkg:bitnami/silverstripe","source":"BIT-silverstripe-2021-41559"},{"ecosystem":"Packagist","fixed":["4.10.9"],"introduced":["4.0.0"],"last_affected":[],"package":"silverstripe/framework","purl":null,"source":"GHSA-9fmg-89fx-r33w"},{"ecosystem":"Packagist","fixed":["4.10.9"],"introduced":["4.0.0"],"last_affected":[],"package":"silverstripe/framework","purl":"pkg:composer/silverstripe/framework","source":"GHSA-9fmg-89fx-r33w"}],"prev":{"headline":"The set_user extension module before 3.0.0 for PostgreSQL allows ProcessUtility_hook bypass via set_config.","id":"CVE-2021-41558"},"products":["n/a"],"published":"2022-06-28","related":[{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2007-2321","kev_date_added":null,"published":"2007-04-27"},{"cvss_score":9.8,"headline":"Missing warning can lead to unauthenticated admin access in SilverStripe","id":"CVE-2019-12204","kev_date_added":null,"published":"2019-09-25"},{"cvss_score":9.8,"headline":"Silverstripe Framework SQLi Vulnerability","id":"CVE-2019-5715","kev_date_added":null,"published":"2019-04-11"},{"cvss_score":8.8,"headline":"Silverstripe CSRF Protection Bypass via GraphQL","id":"CVE-2019-12437","kev_date_added":null,"published":"2020-02-19"},{"cvss_score":7.5,"headline":"Silverstripe CMS information disclosure","id":"CVE-2020-6164","kev_date_added":null,"published":"2020-07-15"},{"cvss_score":7.5,"headline":"SilverStripe Folders migrated from 3.x may be unsafe to upload to","id":"CVE-2020-9280","kev_date_added":null,"published":"2020-04-15"},{"cvss_score":7.5,"headline":"SQL injection in n/a","id":"CVE-2011-4960","kev_date_added":null,"published":"2012-09-17"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"A remote attacker can cause a denial of service in Silverstripe framework by sending a crafted XML document that triggers quadratic blowup.","url":"https://insights.sbomify.com/CVE-2021-41559/"}