CVE-2019-12312

    Dashboard / Vulnerabilities / CVE-2019-12312

    CVE-2019-12312

    Published: 24 May 2019Last Modified: 8 Jul 2026

    Summary:

    Details: 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.

    References: https://libreswan.org/security/CVE-2019-12312/CVE-2019-12312.txt, https://libreswan.org/security/CVE-2019-12312/libreswan-3.27-CVE-2019-12312.patch, https://github.com/libreswan/libreswan/issues/246, https://github.com/libreswan/libreswan/compare/9b1394e...3897683, http://www.iwantacve.cn/index.php/archives/218/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -3897683ffe3597b9e57041876c88de73dc2d04cf

    Affected versions

    v3.27

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High