{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-1405 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-1405 is a high-severity vulnerability in Clamav Clamav, published on 8 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-1405 and fix it if it is affected.\n\nWhat it is: CVE-2021-1405 is a high-severity vulnerability in Clamav Clamav, published on 8 Apr 2021. 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-2021-1405 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-2021-1405/ (Markdown: https://insights.sbomify.com/CVE-2021-1405/index.md)","id":"CVE-2021-1405","markdown":"https://insights.sbomify.com/CVE-2021-1405/index.md","name":"CVE-2021-1405","record":{"aliases":["ALPINE-CVE-2021-1405","CLEANSTART-2026-CT38907","DEBIAN-CVE-2021-1405","DLA-2626-1","GHSA-8r66-4vx2-hf6v","MGASA-2021-0194","UBUNTU-CVE-2021-1405"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"ClamAV antivirus","requires_auth":"none","summary":"An unauthenticated remote attacker can cause a denial of service by sending a crafted email that triggers a null pointer dereference in ClamAV.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"clamav","vendor":"clamav"},{"product":"debian_linux","vendor":"debian"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-909","name":"Missing Initialization of Resource"},{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper variable initialization that may result in an NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.","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":"Clam AntiVirus (ClamAV) PDF Parser Denial of Service Vulnerability","id":"CVE-2021-1405","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"clamav:clamav","products":["clamav:clamav","debian:debian_linux"],"type":"null_dereference","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Cisco Unified Communications Manager Information Disclosure Vulnerability","id":"CVE-2021-1406"},"packages":[],"prev":{"headline":"Clam AntiVirus (ClamAV) Email Parser Denial of Service Vulnerability","id":"CVE-2021-1404"},"products":["ClamAV"],"published":"2021-04-08","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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-11-08","vendors":["Cisco"]},"summary":"An unauthenticated remote attacker can cause a denial of service by sending a crafted email that triggers a null pointer dereference in ClamAV.","url":"https://insights.sbomify.com/CVE-2021-1405/"}