What is the severity of CVE-2015-2923?

CVE-2015-2923 is classified as a medium severity vulnerability due to its potential to allow remote attackers to manipulate network settings.

How do I fix CVE-2015-2923?

To fix CVE-2015-2923, upgrade the FreeBSD operating system to a version later than 10.1 where the vulnerability is addressed.

What systems are affected by CVE-2015-2923?

CVE-2015-2923 affects FreeBSD systems running versions up to and including 10.1.

How does CVE-2015-2923 exploit the Neighbor Discovery protocol?

CVE-2015-2923 exploits the Neighbor Discovery protocol by allowing attackers to send a specially crafted Router Advertisement message to alter the hop-limit value.

Can CVE-2015-2923 lead to denial-of-service attacks?

Yes, CVE-2015-2923 can potentially be exploited to reconfigure network settings, which could lead to denial-of-service attacks.

Vulnerability/
CVE-2015-2923

medium

6.5

CWE

20/2/2020

6/8/2024

CVE-2015-2923: Input Validation

First published: Thu Feb 20 2020(Updated: )

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
FreeBSD Kernel	<10.1

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6fd99094de2b83d1d4c8457f2c83483b2828e75a

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2015-2923?
CVE-2015-2923 is classified as a medium severity vulnerability due to its potential to allow remote attackers to manipulate network settings.
How do I fix CVE-2015-2923?
To fix CVE-2015-2923, upgrade the FreeBSD operating system to a version later than 10.1 where the vulnerability is addressed.
What systems are affected by CVE-2015-2923?
CVE-2015-2923 affects FreeBSD systems running versions up to and including 10.1.
How does CVE-2015-2923 exploit the Neighbor Discovery protocol?
CVE-2015-2923 exploits the Neighbor Discovery protocol by allowing attackers to send a specially crafted Router Advertisement message to alter the hop-limit value.
Can CVE-2015-2923 lead to denial-of-service attacks?
Yes, CVE-2015-2923 can potentially be exploited to reconfigure network settings, which could lead to denial-of-service attacks.

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