Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2019-5598

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.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 1 product from freebsd organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-05-15T16:29:01.080

Last Modified

2025-04-03T06:15:40.680

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	11.2	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes

References

http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA-19-06.pf.html Third Party Advisory, VDB Entry ([email protected])
http://www.securityfocus.com/bid/108395 ([email protected])
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.asc Patch, Vendor Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20190611-0001/ ([email protected])
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html ([email protected])
https://www.synacktiv.com/posts/systems/icmp-reachable.html Third Party Advisory ([email protected])
http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA-19-06.pf.html Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://seclists.org/fulldisclosure/2025/Apr/1 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/108395 (af854a3a-2127-422b-91ae-364da2661108)
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.asc Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20190611-0001/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html (af854a3a-2127-422b-91ae-364da2661108)
https://www.synacktiv.com/posts/systems/icmp-reachable.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For freebsd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.