CVE-2023-38710

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    CVE-2023-38710

    Published: 25 Aug 2023Last Modified: 12 Aug 2026

    Summary:

    Details: 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.

    References: https://github.com/libreswan/libreswan/tags, https://libreswan.org/security/CVE-2023-38710/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/38xxx/CVE-2023-38710.json, https://nvd.nist.gov/vuln/detail/CVE-2023-38710

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 329edadae4ee8a13dcaeecda5465d2d4d703e94f
    Fixed -273ab05494d1a08c81bc4f84c38dfa7128fa239a

    Affected versions

    v4.11

    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
    CVE-2023-38710 | CVE-DB