Denial of service in FreeBSD

Published: 2018-03-09
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-6916
Exploitation vector Network
Public exploit N/A
Vulnerable software
Operating systems & Components / Operating system

Vendor FreeBSD Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Use-after-free error

EUVDB-ID: #VU10889

Risk: Medium


CVE-ID: CVE-2018-6916

CWE-ID: CWE-416 - Use After Free

Exploit availability: No


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to use-after-free memory error in the IPsec Authentication Header (AH). A remote attacker on a trusted host can send a specially crafted IP packet, trigger memory corruption and cause kernel panic.


Install update from vendor's website.

Vulnerable software versions

FreeBSD: 5.3 - 11.1

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?