OpenBSD contains a flaw related to isakmpd creating a replay window of size 0 when responding to SA negotiations, which can be exploited by an attacker to capture IPSec packets and subsequently replay them, this may allow an attacker to bypass certain security restrictions. No further details have been provided.
Classification
Location:
Remote / Network Access
Attack Type:
Cryptographic
Impact:
Loss of Confidentiality
Exploit:
Exploit Unknown
Disclosure:
OSVDB Verified
Solution
Currently, there are no known workarounds or upgrades to correct this issue. However, OpenBSD has released a patch to address this vulnerability.