Improper input validation in Freebsd

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.033 (87.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

  • Freebsd — versions 11.2, 12.0
  • N/a Freebsd — versions FreeBSD 11.2 before 11.2-RELEASE-p10 and 12.0 before 12.0-RELEASE-p4

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-5598?
CVE-2019-5598 is a high-severity vulnerability in Freebsd, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-05-15.
How severe is CVE-2019-5598?
High severity. CVSS v3 base score is 7.5 out of 10.