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CVE-2023-43826

Apache Guacamole: Integer overflow in handling of VNC image buffers

Published: Dec 19, 2023Updated: Feb 13, 2025 Sources: CVE List NVDCWE-190
7.5HIGH
NVD MITRE
EPSS Score
0.9%
Top 44.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-190

Affected Products

Apache Software Foundation
oss-project·USaka apache foundation
Apache GuacamoleWeb App
Web & CMS Plugins
apache
oss-project·USaka apache httpd, apache http server
guacamoleOn-premNetwork Device
Networking Infrastructure

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry53kmwv6
lists.apache.org
http://www.openwall.com/lists/oss-security/2023/12/19/4
openwall.com

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