Use After Free Affecting guacamole-server package, versions [0.9.10,1.5.2-RC1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.83% (82nd percentile)

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  • Snyk IDSNYK-UNMANAGED-GUACAMOLESERVER-5672159
  • published8 Jun 2023
  • disclosed8 Jun 2023
  • creditStefan Schiller

Introduced: 8 Jun 2023

CVE-2023-30576  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade guacamole-server to version 1.5.2-RC1 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free in the _aligned_malloc() function in rdp/pointer.c, which may reference a freed RDP audio input buffer. An attacker can execute arbitrary code with the privileges of the guacd process, with the success of the attack depending on timing.

CVSS Scores

version 3.1