{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-27506 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-27506 is a medium-severity denial of service vulnerability in Clamav Clamav, published on 19 Mar 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-27506 and fix it if it is affected.\n\nWhat it is: CVE-2021-27506 is a medium-severity denial of service vulnerability in Clamav Clamav, published on 19 Mar 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-27506 in the wild and no public exploit code.\n\nAffected product: Clamav Clamav. 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-2021-27506/ (Markdown: https://insights.sbomify.com/CVE-2021-27506/index.md)","id":"CVE-2021-27506","markdown":"https://insights.sbomify.com/CVE-2021-27506/index.md","name":"CVE-2021-27506","record":{"aliases":["GHSA-rfvf-cm38-cvx4","OESA-2021-1187"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Storsmshield Network Security","requires_auth":"none","summary":"Attackers can cause a denial of service in Storsmshield Network Security devices by submitting malformed PNG files to the embedded ClamAV engine.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"clamav","vendor":"clamav"},{"product":"netasq","vendor":"netasq_project"},{"product":"stormshield_network_security","vendor":"stormshield"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19, 3.11.7 and 4.2.1.","ecosystems":[],"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":"Denial of service in n/a","id":"CVE-2021-27506","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"clamav:clamav","products":["clamav:clamav"],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Missing authorization in n/a","id":"CVE-2021-27509"},"packages":[],"prev":{"headline":"mySCADA myPRO Exposure of Information Through Directory Listing","id":"CVE-2021-27505"},"products":["n/a"],"published":"2021-03-19","related":[{"cvss_score":10,"headline":"Security feature bypass in n/a","id":"CVE-2010-0098","kev_date_added":null,"published":"2010-04-08"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2009-1372","kev_date_added":null,"published":"2009-04-23"},{"cvss_score":10,"headline":"Denial of service in n/a","id":"CVE-2008-3914","kev_date_added":null,"published":"2008-09-09"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2008-0728","kev_date_added":null,"published":"2008-02-12"},{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2006-1615","kev_date_added":null,"published":"2006-04-06"},{"cvss_score":9.8,"headline":"ClamAV PDF Scanning Buffer Overflow Vulnerability","id":"CVE-2025-20260","kev_date_added":null,"published":"2025-06-18"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2013-7087","kev_date_added":null,"published":"2019-11-15"}],"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":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can cause a denial of service in Storsmshield Network Security devices by submitting malformed PNG files to the embedded ClamAV engine.","url":"https://insights.sbomify.com/CVE-2021-27506/"}