CVE-2017-9471: Canonical Ubuntu Linux

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

In ytnef 1.9.2, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file.

Affected products

• Canonical Ubuntu Linux: version 14.04 only
• Ytnef Project Ytnef: version 1.9.2 only

Published 2017-06-07. Last modified 2026-06-17.