CVE-2017-17814: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 1.2% chance of exploitation in the next 30 days.

In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in do_directive in asm/preproc.c that will cause a remote denial of service attack.

Affected products

• Canonical Ubuntu Linux: version 14.04 only
• Nasm Netwide Assembler: version 2.14 only

Published 2017-12-21. Last modified 2026-06-17.