Bug 2255290 (CVE-2023-43826) - CVE-2023-43826 guacamole-server: integer overflow vulnerability
Summary: CVE-2023-43826 guacamole-server: integer overflow vulnerability
Keywords:
Status: NEW
Alias: CVE-2023-43826
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2255291 2255292
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-12-19 21:35 UTC by Robb Gatica
Modified: 2026-01-27 09:03 UTC (History)
1 user (show)

Fixed In Version: guacamole 1.5.4
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description Robb Gatica 2023-12-19 21:35:21 UTC 
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.

https://lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry53kmwv6
Comment 1 Robb Gatica 2023-12-19 21:35:38 UTC 
Created guacamole-server tracking bugs for this issue:

Affects: epel-all [bug 2255291]
Affects: fedora-all [bug 2255292]
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