CVE Database›CVE-2023-40181

CVE-2023-40181

freerdp: integer-Underflow leading to Out-Of-Bound Read in zgfx_decompress_segment

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Severity

Low

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · September 1, 2023

Updated · June 26, 2026

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Integer-Underflow leading to Out-Of-Bound Read in the zgfx_decompress_segment function. In the context of CopyMemory, it's possible to read data beyond the transmitted packet range and likely cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this issue.

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 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-191 · Integer Underflow (Wrap or Wraparound)