{"cve":"CVE-2009-1391","nvd":{"published":"2009-06-16T23:30:00.203","modified":"2026-06-16T23:07:11.350","status":"Modified","description":"Off-by-one error in the inflate function in Zlib.xs in Compress::Raw::Zlib Perl module before 2.017, as used in AMaViS, SpamAssassin, and possibly other products, allows context-dependent attackers to cause a denial of service (hang or crash) via a crafted zlib compressed stream that triggers a heap-based buffer overflow, as exploited in the wild by Trojan.Downloader-71014 in June 2009.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://article.gmane.org/gmane.mail.virus.amavis.user/33635","http://article.gmane.org/gmane.mail.virus.amavis.user/33638","http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html","http://osvdb.org/55041","http://secunia.com/advisories/35422"],"products":["paul_marquess:compress-raw-zlib_perl_module"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-1391","score":0.07441,"percentile":0.94455,"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."]}