CVE-2015-8923: Canonical Ubuntu Linux

Medium severity, CVSS 6.5. EPSS: 2.9% chance of exploitation in the next 30 days.

The process_extra function in libarchive before 3.2.0 uses the size field and a signed number in an offset, which allows remote attackers to cause a denial of service (crash) via a crafted zip file.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 15.10 only; version 16.04 only
• Libarchive Libarchive: up to and including 3.1.901a
• Novell Suse Linux Enterprise Desktop: version 12.0 only
• Novell Suse Linux Enterprise Server: version 12.0 only
• Novell Suse Linux Enterprise Software Development Kit: version 12.0 only

Published 2016-09-20. Last modified 2026-06-17.