CVE-2016-4809: Libarchive

High severity, CVSS 7.5. EPSS: 4.8% chance of exploitation in the next 30 days.

The archive_read_format_cpio_read_header function in archive_read_support_format_cpio.c in libarchive before 3.2.1 allows remote attackers to cause a denial of service (application crash) via a CPIO archive with a large symlink.

Affected products

• Libarchive Libarchive: up to and including 3.2.0
• Oracle Linux: version 6 only; version 7 only
• Red Hat Enterprise Linux Desktop: version 6.0 only; version 7.0 only
• Red Hat Enterprise Linux Hpc Node: version 6.0 only; version 7.0 only
• Red Hat Enterprise Linux Hpc Node Eus: version 7.2 only
• Red Hat Enterprise Linux Server: version 6.0 only; version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.2 only
• Red Hat Enterprise Linux Server Eus: version 7.2 only
• Red Hat Enterprise Linux Workstation: version 6.0 only; version 7.0 only

Published 2016-09-21. Last modified 2026-06-17.