{"answers":{"affected":"It affects 6 products.","exploited":"There is no known exploitation of CVE-2021-40836 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-40836 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-40836 is a medium-severity denial of service vulnerability in F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit)  F-Secure Linux Security 64  F-Secure Atlant \u0026 F-Secure Internet Gatekeeper, published on 22 Dec 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-40836 and fix it if it is affected.\n\nWhat it is: CVE-2021-40836 is a medium-severity denial of service vulnerability in F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit)  F-Secure Linux Security 64  F-Secure Atlant \u0026 F-Secure Internet Gatekeeper, published on 22 Dec 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-40836 in the wild and no public exploit code.\n\nAffected product: F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit)  F-Secure Linux Security 64  F-Secure Atlant \u0026 F-Secure Internet Gatekeeper. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2021-40836/ (Markdown: https://insights.sbomify.com/CVE-2021-40836/index.md)","id":"CVE-2021-40836","markdown":"https://insights.sbomify.com/CVE-2021-40836/index.md","name":"CVE-2021-40836","record":{"aliases":["GHSA-mvh9-66vv-hxxf"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"F-Secure antivirus engine","requires_auth":"low_privilege","summary":"Remote attackers can cause denial-of-service in F-Secure antivirus engines by sending malicious Microsoft Outlook PST files for scanning.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"F-SecureUS","cpe":[{"product":"atlant","vendor":"f-secure"},{"product":"elements_endpoint_detection_and_response","vendor":"f-secure"},{"product":"elements_endpoint_protection","vendor":"f-secure"},{"product":"internet_gatekeeper","vendor":"f-secure"},{"product":"linux_security","vendor":"f-secure"},{"product":"linux_security_64","vendor":"f-secure"}],"cvss":{"score":4.6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L","version":"3.1"},"cwes":[],"description":"A vulnerability affecting F-Secure antivirus engine was discovered whereby scanning MS outlook .pst files can lead to denial-of-service. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Denial-of-Service (DoS) Vulnerability","id":"CVE-2021-40836","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Denial-of-Service (DoS) Vulnerability","id":"CVE-2021-40837"},"packages":[],"prev":{"headline":"URL Address Bar Spoofing in F-Secure SAFE Browser for iOS","id":"CVE-2021-40835"},"products":["F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit)  F-Secure Linux Security 64  F-Secure Atlant \u0026 F-Secure Internet Gatekeeper"],"published":"2021-12-22","related":[{"cvss_score":7.8,"headline":"Privilege escalation in n/a","id":"CVE-2023-43766","kev_date_added":null,"published":"2023-09-22"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-49322","kev_date_added":null,"published":"2023-11-26"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-43760","kev_date_added":null,"published":"2023-09-22"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-43761","kev_date_added":null,"published":"2023-09-22"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-43765","kev_date_added":null,"published":"2023-09-22"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-43767","kev_date_added":null,"published":"2023-09-22"},{"cvss_score":5.5,"headline":"Denial-of-Service (DoS) Vulnerability","id":"CVE-2021-40833","kev_date_added":null,"published":"2021-11-26"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["F-Secure"]},"summary":"Remote attackers can cause denial-of-service in F-Secure antivirus engines by sending malicious Microsoft Outlook PST files for scanning.","url":"https://insights.sbomify.com/CVE-2021-40836/"}