UBUNTU-CVE-2024-3094

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    UBUNTU-CVE-2024-3094

    Published: 29 Mar 2024Last Modified: 16 Jul 2025
    Upstream:
    CVE-2024-3094

    Summary:

    Details: Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. Through a series of complex obfuscations, the liblzma build process extracts a prebuilt object file from a disguised test file existing in the source code, which is then used to modify specific functions in the liblzma code. This results in a modified liblzma library that can be used by any software linked against this library, intercepting and modifying the data interaction with this library.

    References: https://ubuntu.com/security/CVE-2024-3094, https://www.openwall.com/lists/oss-security/2024/03/29/4, https://discourse.ubuntu.com/t/xz-liblzma-security-update/43714, https://www.cve.org/CVERecord?id=CVE-2024-3094

    Affected packages

    Package

    Name: xz-utils

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.2.4-1ubuntu1.1

    Affected versions

    5.2.4-1
    5.2.4-1ubuntu1

    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-2024-3094 | CVE-DB