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    CVE-2023-43279

    Null Pointer Dereference in mask_cidr6 component at cidr.c in Tcpreplay 4.4.4 allows attackers to crash the application via crafted tcprewrite command.

    Published:Mar 12, 2024
    Last Modified:Nov 4, 2025
    EPS:Mar 12, 2024
    EPSS Score:0.0001
    CVSS Score:6.5

    Affected Products

    Vendor
    Broadcom
    Product
    Tcpreplay
    Vendor
    Fedoraproject
    Product
    Fedora

    Exploits

    https://github.com/appneta/tcpreplay/issues/824https://github.com/appneta/tcpreplay/issues/824

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-51005 (CVSS 7.5) — A heap-buffer-overflow vulnerability exists in the tcpliveplay utility of the tcpreplay-4.5.1. When a crafted …
    CVE-2025-51006 (CVSS 7.8) — Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the dlt_linuxsll2_cleanup() …
    CVE-2025-9649 (CVSS 1.9) — A security vulnerability has been detected in appneta tcpreplay 4.5.1. Impacted is the function calc_sleep_tim…
    CVE-2025-9386 (CVSS 1.9) — A vulnerability has been found in appneta tcpreplay up to 4.5.1. The impacted element is the function get_l2le…
    CVE-2025-9385 (CVSS 1.9) — A flaw has been found in appneta tcpreplay up to 4.5.1. The affected element is the function fix_ipv6_checksum…
    CVE-2025-9384 (CVSS 1.9) — A vulnerability was detected in appneta tcpreplay up to 4.5.1. Impacted is the function tcpedit_post_args of t…
    CVE-2025-9019 (CVSS 1.3) — A vulnerability has been found in tcpreplay 4.5.1. This vulnerability affects the function mask_cidr6 of the f…
    CVE-2024-22654 (CVSS 7.5) — tcpreplay v4.4.4 was discovered to contain an infinite loop via the tcprewrite function at get.c.…
    CVE-2024-3024 (CVSS 5.3) — A vulnerability was found in appneta tcpreplay up to 4.4.4. It has been classified as problematic. This affect…
    CVE-2023-4256 (CVSS 5.5) — Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the tcpedit_dlt_cleanup() fu…

    References

    https://github.com/appneta/tcpreplay/issues/824
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EHUILQV2YJI5TXXXJA5FQ2HJQGFT7NTN/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMW5CIODKRHUUH7NTAYIRWGSJ56DTGXM/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3GYCHPVJ2VFN3D7FI4IRMDVMILLWBRF/
    https://github.com/appneta/tcpreplay/issues/824
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EHUILQV2YJI5TXXXJA5FQ2HJQGFT7NTN/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMW5CIODKRHUUH7NTAYIRWGSJ56DTGXM/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3GYCHPVJ2VFN3D7FI4IRMDVMILLWBRF/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/TMW5CIODKRHUUH7NTAYIRWGSJ56DTGXM/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/V3GYCHPVJ2VFN3D7FI4IRMDVMILLWBRF/

    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