Resource exhaustion in FreeBSD - CVE-2018-6923

 

Resource exhaustion in FreeBSD - CVE-2018-6923

Published: August 15, 2018 / Updated: August 15, 2018


Vulnerability identifier: #VU14414
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-6923
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to an error when processing specially crafted input. A remote attacker can send a stream of specially crafted
fragments with a low packet rate, consume a large amount of CPU or all available mbuf clusters and cause the system to crash.


Affected software

FreeBSD

How to mitigate CVE-2018-6923

Install update from vendor's website.


External References

Related Security Bulletins