Apache Guacamole: Integer overflow in handling of VNC image buffers
CVE-2023-43826

8.8HIGH

Key Information:

Vendor

Apache
Status
Apache Guacamole
Vendor
CVE Published:
19 December 2023

What is CVE-2023-43826?

Apache Guacamole versions prior to 1.5.4 are vulnerable to an integer overflow issue when processing data from a VNC server. If exploited, this vulnerability could lead to memory corruption, potentially allowing an attacker to execute arbitrary code with the privileges of the running guacd process. It is crucial for users to upgrade to version 1.5.4 or later to mitigate this risk effectively.

Affected Version(s)

Apache Guacamole 0 <= 1.5.3

References

https://lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry...
vendor-advisory
http://www.openwall.com/lists/oss-security/2023/12/19/4

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Joseph Surin (Elttam)
Matt Jones (Elttam)
.