CVE-2019-5598
moderate-risk
Published 2019-05-15
In FreeBSD 11.3-PRERELEASE before r345378, 12.0-STABLE before r345377, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in pf does not check if the outer ICMP or ICMP6 packet has the same destination IP as the source IP of the inner protocol packet allowing a maliciously crafted ICMP/ICMP6 packet could bypass the packet filter rules and be passed to a host that would otherwise be unavailable.
Do I need to act?
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0.34% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (12)
Affected Vendors
References (13)
Third Party Advisory
http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA...
Third Party Advisory
https://www.synacktiv.com/posts/systems/icmp-reachable.html
Third Party Advisory
http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA...
Third Party Advisory
https://www.synacktiv.com/posts/systems/icmp-reachable.html
44
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
1/34 · Minimal
Exposure
17/34 · Moderate