What is the severity of CVE-2018-6916?

CVE-2018-6916 is rated as a high severity vulnerability due to its potential to cause a system crash.

How do I fix CVE-2018-6916?

To fix CVE-2018-6916, upgrade your FreeBSD system to the latest stable release or apply the official patches provided in the security advisories.

What systems are affected by CVE-2018-6916?

CVE-2018-6916 affects FreeBSD versions before 11.1-STABLE, those with specific patch levels such as 11.1-RELEASE-p7, 10.4-STABLE, and 10.3-RELEASE-p28.

What is the impact of CVE-2018-6916?

The impact of CVE-2018-6916 includes the possibility of a system crash due to improper validation of IPsec packets and a use-after-free vulnerability.

Is CVE-2018-6916 exploitable remotely?

Yes, CVE-2018-6916 can be exploited remotely by sending malicious IPsec packets from a trusted host.

Vulnerability/
CVE-2018-6916

critical

9.8

CWE

416

9/3/2018

17/9/2024

CVE-2018-6916: Use After Free

First published: Fri Mar 09 2018(Updated: )

In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p7, 10.4-STABLE, 10.4-RELEASE-p7, and 10.3-RELEASE-p28, the kernel does not properly validate IPsec packets coming from a trusted host. Additionally, a use-after-free vulnerability exists in the IPsec AH handling code. This issue could cause a system crash or other unpredictable results.

Credit: secteam@freebsd.org

Affected Software	Affected Version	How to fix
FreeBSD Kernel	>=11.0<11.1
FreeBSD Kernel	=10.3-p28
FreeBSD Kernel	=10.4
FreeBSD Kernel	=10.4-p7

Remedy

https://www.freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.asc

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2018-6916?
CVE-2018-6916 is rated as a high severity vulnerability due to its potential to cause a system crash.
How do I fix CVE-2018-6916?
To fix CVE-2018-6916, upgrade your FreeBSD system to the latest stable release or apply the official patches provided in the security advisories.
What systems are affected by CVE-2018-6916?
CVE-2018-6916 affects FreeBSD versions before 11.1-STABLE, those with specific patch levels such as 11.1-RELEASE-p7, 10.4-STABLE, and 10.3-RELEASE-p28.
What is the impact of CVE-2018-6916?
The impact of CVE-2018-6916 includes the possibility of a system crash due to improper validation of IPsec packets and a use-after-free vulnerability.
Is CVE-2018-6916 exploitable remotely?
Yes, CVE-2018-6916 can be exploited remotely by sending malicious IPsec packets from a trusted host.

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vendor/freebsd
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