CVE-2020-10177: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 1.5% chance of exploitation in the next 30 days.

Pillow before 7.1.0 has multiple out-of-bounds reads in libImaging/FliDecode.c.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 20.04 only
• Debian Debian Linux: version 9.0 only
• Fedoraproject Fedora: version 31 only; version 32 only
• Python Pillow: before 7.1.0 (fixed in 7.1.0)

Published 2020-06-25. Last modified 2026-06-17.