CVE-2009-1391: Paul Marquess Compress-Raw-Zlib Perl Module

Medium severity, CVSS 6.8. EPSS: 7.4% chance of exploitation in the next 30 days.

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.

Affected products

• Paul Marquess Compress-Raw-Zlib Perl Module: up to and including 2.015; version 2.001 only; version 2.002 only; version 2.003 only; version 2.004 only; version 2.005 only; …

Published 2009-06-16. Last modified 2026-06-16.