Description
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.
Published: 2019-05-24
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2019-3949 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.
History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00539}

epss

{'score': 0.00542}


Subscriptions

Libreswan Libreswan
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T23:17:40.062Z

Reserved: 2019-05-24T00:00:00.000Z

Link: CVE-2019-12312

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-05-24T14:29:00.230

Modified: 2024-11-21T04:22:36.383

Link: CVE-2019-12312

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-05-12T00:00:00Z

Links: CVE-2019-12312 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses