Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Guacamole | <= 1.5.3 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2023/12/19/4Mailing ListThird Party Advisory
- https://lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry53kmwv6Mailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2023/12/19/4Mailing ListThird Party Advisory
- https://lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry53kmwv6Mailing ListVendor Advisory
FAQ
What is CVE-2023-43826?
CVE-2023-43826 is a vulnerability with a CVSS score of 7.5 (HIGH). 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, spe...
How severe is CVE-2023-43826?
CVE-2023-43826 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-43826?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Guacamole.