What is the severity of ZDI-20-661?

The severity of ZDI-20-661 is classified as a medium risk due to potential information disclosure.

How do I fix ZDI-20-661?

To fix ZDI-20-661, apply the latest security patches recommended in FreeBSD security advisories.

Who is affected by ZDI-20-661?

ZDI-20-661 affects users of the FreeBSD Kernel with specific configurations implementing NAT.

Is authentication required to exploit ZDI-20-661?

Yes, authentication is required to exploit ZDI-20-661.

What kind of information can be disclosed due to ZDI-20-661?

ZDI-20-661 can lead to the disclosure of sensitive information from the affected installations.

Vulnerability/
ZDI-20-661

medium

4.1

4/8/2024

ZDI-20-661: FreeBSD Kernel NAT Out-Of-Bounds Read Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on affected installations of FreeBSD Kernel. Authentication is required to exploit this vulnerability. The specific flaw exists within the implementation of NAT. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of kernel.

Affected Software	Affected Version	How to fix
FreeBSD Kernel

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Reference Links

Frequently Asked Questions

What is the severity of ZDI-20-661?
The severity of ZDI-20-661 is classified as a medium risk due to potential information disclosure.
How do I fix ZDI-20-661?
To fix ZDI-20-661, apply the latest security patches recommended in FreeBSD security advisories.
Who is affected by ZDI-20-661?
ZDI-20-661 affects users of the FreeBSD Kernel with specific configurations implementing NAT.
Is authentication required to exploit ZDI-20-661?
Yes, authentication is required to exploit ZDI-20-661.
What kind of information can be disclosed due to ZDI-20-661?
ZDI-20-661 can lead to the disclosure of sensitive information from the affected installations.

agent/references
agent/type
agent/softwarecombine
collector/zdi-advisory
source/ZDI
alias/ZDI-20-661
alias/ZDI-CAN-10850
alias/CVE-2020-7455
agent/software-canonical-lookup
agent/severity
agent/title
agent/event
agent/description
agent/tags
agent/source
vendor/freebsd
canonical/freebsd kernel

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Frequently Asked Questions

What is the severity of ZDI-20-661?
The severity of ZDI-20-661 is classified as a medium risk due to potential information disclosure.
How do I fix ZDI-20-661?
To fix ZDI-20-661, apply the latest security patches recommended in FreeBSD security advisories.
Who is affected by ZDI-20-661?
ZDI-20-661 affects users of the FreeBSD Kernel with specific configurations implementing NAT.
Is authentication required to exploit ZDI-20-661?
Yes, authentication is required to exploit ZDI-20-661.
What kind of information can be disclosed due to ZDI-20-661?
ZDI-20-661 can lead to the disclosure of sensitive information from the affected installations.