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CVE-2019-5598

CVE-2019-5598

EPSS 3.3%
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.
Affected products
n/a · FreeBSD

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References
http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA-19-06.pf.htmlhttp://seclists.org/fulldisclosure/2025/Apr/1https://security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.aschttps://security.netapp.com/advisory/ntap-20190611-0001/https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlhttps://www.synacktiv.com/posts/systems/icmp-reachable.htmlhttp://www.securityfocus.com/bid/108395