What is the severity of ZDI-CAN-11543?

The severity of ZDI-CAN-11543 is classified as high due to its potential for privilege escalation on impacted FreeBSD Kernel installations.

How do I fix ZDI-CAN-11543?

To fix ZDI-CAN-11543, it is recommended to update the FreeBSD Kernel to the latest version that addresses this vulnerability.

Who is affected by ZDI-CAN-11543?

Any system running affected versions of the FreeBSD Kernel is vulnerable to ZDI-CAN-11543 if an attacker can execute low-privileged code.

What type of vulnerability is ZDI-CAN-11543?

ZDI-CAN-11543 is a privilege escalation vulnerability that allows local attackers to gain elevated access rights on the FreeBSD Kernel.

Can ZDI-CAN-11543 be exploited remotely?

ZDI-CAN-11543 cannot be exploited remotely, as an attacker must first have the ability to execute code on the local system.

Vulnerability/
ZDI-CAN-11543

high

8.8

4/8/2024

ZDI-CAN-11543: FreeBSD Kernel sendmsg System Call Time-Of-Check Time-Of-Use Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of FreeBSD Kernel. 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 arguments to the sendmsg system call. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

Affected Software	Affected Version	How to fix
FreeBSD Kernel

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Frequently Asked Questions

What is the severity of ZDI-CAN-11543?
The severity of ZDI-CAN-11543 is classified as high due to its potential for privilege escalation on impacted FreeBSD Kernel installations.
How do I fix ZDI-CAN-11543?
To fix ZDI-CAN-11543, it is recommended to update the FreeBSD Kernel to the latest version that addresses this vulnerability.
Who is affected by ZDI-CAN-11543?
Any system running affected versions of the FreeBSD Kernel is vulnerable to ZDI-CAN-11543 if an attacker can execute low-privileged code.
What type of vulnerability is ZDI-CAN-11543?
ZDI-CAN-11543 is a privilege escalation vulnerability that allows local attackers to gain elevated access rights on the FreeBSD Kernel.
Can ZDI-CAN-11543 be exploited remotely?
ZDI-CAN-11543 cannot be exploited remotely, as an attacker must first have the ability to execute code on the local system.

collector/zdi-advisory
source/ZDI
alias/ZDI-20-949
alias/ZDI-CAN-11543
alias/CVE-2020-7460
agent/software-canonical-lookup
agent/severity
agent/references
agent/title
agent/softwarecombine
agent/event
agent/type
agent/description
agent/tags
agent/source
vendor/freebsd
canonical/freebsd kernel

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Frequently Asked Questions

What is the severity of ZDI-CAN-11543?
The severity of ZDI-CAN-11543 is classified as high due to its potential for privilege escalation on impacted FreeBSD Kernel installations.
How do I fix ZDI-CAN-11543?
To fix ZDI-CAN-11543, it is recommended to update the FreeBSD Kernel to the latest version that addresses this vulnerability.
Who is affected by ZDI-CAN-11543?
Any system running affected versions of the FreeBSD Kernel is vulnerable to ZDI-CAN-11543 if an attacker can execute low-privileged code.
What type of vulnerability is ZDI-CAN-11543?
ZDI-CAN-11543 is a privilege escalation vulnerability that allows local attackers to gain elevated access rights on the FreeBSD Kernel.
Can ZDI-CAN-11543 be exploited remotely?
ZDI-CAN-11543 cannot be exploited remotely, as an attacker must first have the ability to execute code on the local system.