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TI-2019-03963 Aliases CVE-2019-5598GHSA-995j-4q8r-wq8h

Improper input validation in FreeBSD

Priority LOW 39CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.03339 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—FreeBSDFreeBSD 11.2 before 11.2-RELEASE-p10 and 12.0 before 12.0-RELEASE-p4—No fix listedCNA
  • FreeBSD Vendor— Affected FreeBSD 11.2 before 11.2-RELEASE-p10 and 12.0 before 12.0-RELEASE-p4 Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*11.2VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*11.2 p2VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*11.2 p3VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*11.2 p4VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*11.2 p5VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:*11.2 p6VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:*11.2 p7VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:*11.2 p9VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:rc3:*:*:*:*:*:*11.2 rc3VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*12.0VulnerableFreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:* Versions 11.2 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:* Versions 11.2 p2 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:* Versions 11.2 p3 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:* Versions 11.2 p4 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:* Versions 11.2 p5 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:* Versions 11.2 p6 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:* Versions 11.2 p7 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:* Versions 11.2 p9 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:rc3:*:*:*:*:*:* Versions 11.2 rc3 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:* Versions 12.0 Vulnerable ·FreeBSD
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*12.0 p1VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*12.0 p3VulnerableFreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:* Versions 12.0 p1 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:* Versions 12.0 p3 Vulnerable ·FreeBSD

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-5598
  2. 2026-10-03 Alias added: GHSA-995j-4q8r-wq8h

References

Patch 1

Advisory 2

Other 2

  • TI-2011-04182 Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT… CVSS 2.0HIGH 10.0
  • TI-2007-03684 Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows… CVSS 3.1CRITICAL 9.8
  • TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
  • TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
  • TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
  • TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
See all 576 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences