CVE-2018-6918

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 4.4%

exploitation probability

4.4%top 10% of all CVEs

observed exploitation

nono source reports it

In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, the length field of the ipsec option header does not count the size of the option header itself, causing an infinite loop when the length is zero. This issue can allow a remote attacker who is able to send an arbitrary packet to cause the machine to crash.

Affected products

FreeBSD · FreeBSD

References

http://seclists.org/fulldisclosure/2019/Jun/6 https://seclists.org/bugtraq/2019/May/77 https://security.FreeBSD.org/advisories/FreeBSD-SA-18:05.ipsec.asc https://support.apple.com/kb/HT210090 https://support.apple.com/kb/HT210091 http://www.securityfocus.com/bid/103666 http://www.securitytracker.com/id/1040628