CVE-2018-6540: Canonical Ubuntu Linux

Medium severity, CVSS 6.5. EPSS: 2.3% chance of exploitation in the next 30 days.

In ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned address in the zzip_disk_findfirst function of zzip/mmapped.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only; version 18.04 only
• Gdraheim Zziplib: version 0.13.67 only

Published 2018-02-02. Last modified 2026-06-17.