What is the severity of ZDI-20-1416?

ZDI-20-1416 has been assigned a high severity rating due to its potential for privilege escalation.

How do I fix ZDI-20-1416?

To remediate ZDI-20-1416, update X.Org Server to the latest patched version provided by your vendor.

Who is affected by ZDI-20-1416?

ZDI-20-1416 affects installations of X.Org Server where local attackers can execute low-privileged code.

What are the potential impacts of ZDI-20-1416?

The potential impact of ZDI-20-1416 includes unauthorized access and escalation of privileges on the affected system.

How can ZDI-20-1416 be exploited?

ZDI-20-1416 can be exploited if an attacker has already gained access to run low-privileged code on the system.

Vulnerability/
ZDI-20-1416

high

7.8

29/1/2025

ZDI-20-1416: X.Org Server XkbSetNames Out-Of-Bounds Access Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of XkbSetNames requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated data structure. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of root.

Affected Software	Affected Version	How to fix
X.Org Xserver

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Reference Links

Frequently Asked Questions

What is the severity of ZDI-20-1416?
ZDI-20-1416 has been assigned a high severity rating due to its potential for privilege escalation.
How do I fix ZDI-20-1416?
To remediate ZDI-20-1416, update X.Org Server to the latest patched version provided by your vendor.
Who is affected by ZDI-20-1416?
ZDI-20-1416 affects installations of X.Org Server where local attackers can execute low-privileged code.
What are the potential impacts of ZDI-20-1416?
The potential impact of ZDI-20-1416 includes unauthorized access and escalation of privileges on the affected system.
How can ZDI-20-1416 be exploited?
ZDI-20-1416 can be exploited if an attacker has already gained access to run low-privileged code on the system.

agent/references
agent/type
agent/softwarecombine
agent/severity
agent/title
agent/description
agent/source
agent/tags
collector/zdi-advisory
source/ZDI
alias/ZDI-20-1416
alias/ZDI-CAN-11428
alias/CVE-2020-14345
agent/software-canonical-lookup
agent/software-canonical-lookup-request
agent/event
vendor/x.org
canonical/x.org xserver

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Frequently Asked Questions

What is the severity of ZDI-20-1416?
ZDI-20-1416 has been assigned a high severity rating due to its potential for privilege escalation.
How do I fix ZDI-20-1416?
To remediate ZDI-20-1416, update X.Org Server to the latest patched version provided by your vendor.
Who is affected by ZDI-20-1416?
ZDI-20-1416 affects installations of X.Org Server where local attackers can execute low-privileged code.
What are the potential impacts of ZDI-20-1416?
The potential impact of ZDI-20-1416 includes unauthorized access and escalation of privileges on the affected system.
How can ZDI-20-1416 be exploited?
ZDI-20-1416 can be exploited if an attacker has already gained access to run low-privileged code on the system.