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cvelistMitreCVELIST:CVE-2023-38710
HistoryAug 25, 2023 - 12:00 a.m.

CVE-2023-38710

2023-08-2500:00:00
mitre
raw.githubusercontent.com
1
libreswan
crash
restart
invalid ipsec protocol id
ikev2 child sa
rekey
invalid_spi
notify payload's protocol id
verify outgoing packets
esp
ah
pluto daemon
earliest affected version 3.20

6.3 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

12.6%

An issue was discovered in Libreswan before 4.12. When an IKEv2 Child SA REKEY packet contains an invalid IPsec protocol ID number of 0 or 1, an error notify INVALID_SPI is sent back. The notify payload’s protocol ID is copied from the incoming packet, but the code that verifies outgoing packets fails an assertion that the protocol ID must be ESP (2) or AH(3) and causes the pluto daemon to crash and restart. NOTE: the earliest affected version is 3.20.