CVE-2023-38406

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    CVE-2023-38406

    Published: 6 Nov 2023Last Modified: 12 Aug 2026

    Summary:

    Details: bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri length of zero, aka a "flowspec overflow."

    References: https://github.com/FRRouting/frr/compare/frr-8.4.2...frr-8.4.3, https://lists.debian.org/debian-lts-announce/2024/09/msg00007.html, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/38xxx/CVE-2023-38406.json, https://nvd.nist.gov/vuln/detail/CVE-2023-38406, https://github.com/FRRouting/frr/pull/12884, https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -933b8347fb4aadf53bd23aaae6bee6edc6ce72b8

    Affected versions

    frr-8.4.2
    frr-8.4
    frr-8.4.1

    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-2023-38406 | CVE-DB