Improper input validation in Libreswan

CVE-2015-3204

libreswan 3.9 through 3.12 allows remote attackers to cause a denial of service (daemon restart) via an IKEv1 packet with (1) unassigned bits set in the IPSEC DOI value or (2) the next payload value set to ISAKMP_NEXT_SAK.

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

EPSS: 0.026 (83.7th percentile) — read the EPSS interpretation.

Affected products

  • Libreswan — versions 3.9, 3.10, 3.11
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2015-3204?
CVE-2015-3204 is a vulnerability in Libreswan, classified under Improper Input Validation. Published 2015-07-01.
Is CVE-2015-3204 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.