CVE-2018-8784

freerdp: Heap-based buffer overflow in zgfx_decompress_segment() function

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Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.0

Review impact separately from score.

Published · October 22, 2018

Updated · November 22, 2025

Description

FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress_segment() that results in a memory corruption and probably even a remote code execution.

Statement

This issue did not affect the versions of freerdp as shipped with Red Hat Enterprise Linux 6 and 7 as they did not include support for ZGFX data compression.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 6.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-122 · Heap-based Buffer Overflow