IKEv1 default AH/ESP responder can cause libreswan to abort and restart
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.8%
exploitation probability
0.8%top 45% of all CVEs
observed exploitation
nono source reports it
The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an assertion failure and crashes and restarts. IKEv2 connections are not affected.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
The Libreswan Project (www.libreswan.org) · libreswan