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.
Metrics
CVSS 3.1 8.8/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Guacamole | <= 1.5.3 |
References
- http://www.openwall.com/lists/oss-security/2023/12/19/4Mailing List, Third Party Advisory
- https://lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry53kmwv6Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2023/12/19/4Mailing List, Third Party Advisory
- https://lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry53kmwv6Mailing List, Vendor Advisory
Timeline
- Published
- Dec 19, 2023
- Last modified
- Jun 17, 2026
- NVD status
- Modified