Impact: Moderate Public Date: 2019-05-12 CWE: CWE-476 Bugzilla: 1716918: CVE-2019-12312 libreswan: null-pointer dereference by sending two IKEv2 packets In Libreswan before 3.28, an assertion failure can lead to a pluto IKE daemon restart. An attacker can trigger a NULL pointer dereference by sending two IKEv2 packets (init_IKE and delete_IKE) in 3des_cbc mode to a Libreswan server. This affects send_v2N_spi_response_from_state in programs/pluto/ikev2_send.c when built with Network Security Services (NSS).
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2019-12312 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 4.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | Low |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 8 | libreswan | Under investigation |
| Red Hat Enterprise Linux 7 | libreswan | Under investigation |
| Red Hat Enterprise Linux 6 | openswan | Under investigation |
| Red Hat Enterprise Linux 6 | libreswan | Under investigation |
| Red Hat Enterprise Linux 5 | openswan | Under investigation |
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