CVE-2019-17178: Freerdp

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

HuffmanTree_makeFromFrequencies in lodepng.c in LodePNG through 2019-09-28, as used in WinPR in FreeRDP and other products, has a memory leak because a supplied realloc pointer (i.e., the first argument to realloc) is also used for a realloc return value.

Affected products

• Freerdp Freerdp: up to and including 1.0.2; version 1.1.0 only
• Lodev Lodepng: up to and including 2019-09-28
• Opensuse Leap: version 15.0 only; version 15.1 only

Published 2019-10-04. Last modified 2026-06-17.