CVE-2019-12312
Fixed in a distro release EPSS 3%
In Libreswan 3.27 an assertion failure can lead to a pluto IKE daemon restart. An attacker can trigger a NULL pointer dereference by initiating an IKEv2 IKE_SA_INIT exchange, followed by a bogus INFORMATIONAL exchange instead of the normallly expected IKE_AUTH exchange. This affects send_v2N_spi_response_from_state() in programs/pluto/ikev2_send.c that will then trigger a NULL pointer dereference leading to a restart of libreswan.
Products: libreswan
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | libreswan | 3.27-5 |
| Debian 13 | libreswan | 3.27-5 |
| Debian 14 | libreswan | 3.27-5 |
| Red Hat Enterprise Linux 8 | libreswan | 0:3.29-6.el8 |
| Red Hat Enterprise Linux 8 | libreswan-debuginfo | 0:3.29-6.el8 |
| Red Hat Enterprise Linux 8 | libreswan-debugsource | 0:3.29-6.el8 |