{"id":"CVE-2019-5020","details":"An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1. A specially crafted binary file can cause a negative value to be read to satisfy an assert, resulting in Denial of Service. An attacker can create a malicious binary to trigger this vulnerability.","modified":"2026-07-08T20:57:35.674445Z","published":"2019-07-31T17:15:11.387Z","references":[{"type":"EVIDENCE","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0781"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/virustotal/yara","events":[{"introduced":"309894830a5f9ff8cc22155d7719ea608de7bc9d"},{"last_affected":"309894830a5f9ff8cc22155d7719ea608de7bc9d"}],"database_specific":{"cpe":"cpe:2.3:a:virustotal:yara:3.8.1:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.8.1"},{"last_affected":"3.8.1"}],"source":"CPE_STRING"}}],"versions":["3.8.1","v3.8.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-5020.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}