Description
Apache Guacamole 1.5.3 and older do not consistently ensure that values received from a VNC server will not result in integer overflow. If a user connects to a malicious or compromised VNC server, specially-crafted data could result in memory corruption, possibly allowing arbitrary code to be executed with the privileges of the running guacd process. Users are recommended to upgrade to version 1.5.4, which fixes this issue.
References (2)
Core 2
Core References
Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/12/19/4
Mailing List, Vendor Advisory vendor-advisory
https://lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry53kmwv6
Scores
CVSS v3
7.5
EPSS
0.0008
EPSS Percentile
24.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-190
Status
published
Products (1)
apache/guacamole
< 1.5.3
Published
Dec 19, 2023
Tracked Since
Feb 18, 2026