UBUNTU-CVE-2023-4256

    Dashboard / Vulnerabilities / UBUNTU-CVE-2023-4256

    UBUNTU-CVE-2023-4256

    Published: 21 Dec 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-4256
    Aliases:
    USN-7231-1

    Summary:

    Details: Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the tcpedit_dlt_cleanup() function within plugins/dlt_plugins.c. This vulnerability can be exploited by supplying a specifically crafted file to the tcprewrite binary. This flaw enables a local attacker to initiate a Denial of Service (DoS) attack.

    References: https://ubuntu.com/security/CVE-2023-4256, https://www.cve.org/CVERecord?id=CVE-2023-4256, https://github.com/appneta/tcpreplay/commit/c23738f15dd43e320364f7d3b45174f253e82884, https://ubuntu.com/security/notices/USN-7231-1

    Affected packages

    Package

    Name: tcpreplay

    Purl: pkg:deb/ubuntu/[email protected]~esm5?arch=source&distro=esm-apps/bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.2.6-1ubuntu0.1~esm5

    Affected versions

    4.2.6-1
    4.2.6-1ubuntu0.1~esm1
    4.2.6-1ubuntu0.1~esm2
    4.2.6-1ubuntu0.1~esm3
    4.2.6-1ubuntu0.1~esm4

    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
    UBUNTU-CVE-2023-4256 | CVE-DB