CVE-2009-1884: Bzip Compress-Raw-BZIP2

Medium severity, CVSS 4.3. EPSS: 2.6% chance of exploitation in the next 30 days.

Off-by-one error in the bzinflate function in Bzip2.xs in the Compress-Raw-Bzip2 module before 2.018 for Perl allows context-dependent attackers to cause a denial of service (application hang or crash) via a crafted bzip2 compressed stream that triggers a buffer overflow, a related issue to CVE-2009-1391.

Affected products

• Bzip Compress-Raw-BZIP2: up to and including 2.017; version 2.0.00_10 only; version 2.0.00_12 only; version 2.0.00_14 only; version 2.0.01 only; version 2.0.02 only; …

Published 2009-08-19. Last modified 2026-06-16.