{"cve":"CVE-2013-2020","nvd":{"published":"2013-05-13T23:55:02.243","modified":"2026-06-16T23:52:35.847","status":"Modified","description":"Integer underflow in the cli_scanpe function in pe.c in ClamAV before 0.97.8 allows remote attackers to cause a denial of service (crash) via a skewed offset larger than the size of the PE section in a UPX packed executable, which triggers an out-of-bounds read.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://blog.clamav.net/2013/04/clamav-0978-has-been-released.html","http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html","http://lists.apple.com/archives/security-announce/2013/Sep/msg00004.html","http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109514.html","http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109639.html"],"products":["canonical:ubuntu_linux","clamav:clamav","suse:linux_enterprise_server"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2013-2020","score":0.03547,"percentile":0.89303,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}