Patch

CVE-2024-3094

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Vulnerability Overview

CVE Name

CVE-2024-3094

Severity

Critical

CVE Description

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 ...

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Latest Patch info

There is no patch available at the moment, but you can use our script.

Patch Name

Date

Script

Script Type

Remediation script

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The backdoor code is present in xz versions 5.6.0 (released February 24) and 5.6.1 (released March 9). The software supply chain compromise, tracked as CVE-2024-3094, has a CVSS score of 10.0, indicating maximum severity. #trending

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#!/bin/bash

# Function to update xz-utils
update_xz_utils() {
    if command -v dnf &> /dev/null; then
        # For Fedora and Red Hat
        sudo dnf update xz
    elif command -v yum &> /dev/null; then
        # For older versions of Red Hat
        sudo yum update xz
    elif command -v apt-get &> /dev/null; then
        # For Debian-based systems
        sudo apt-get update
        sudo apt-get upgrade xz-utils
    else
        echo "Unsupported package manager. Manual intervention is required."
        exit 1
    fi
}

# Check if xz-utils package is installed
if command -v xz &> /dev/null; then
    echo "xz-utils package is installed."
    # Get the version of xz-utils
    xz_version=$(xz --version | grep "xz (XZ Utils)")
    # Check if xz version is vulnerable (e.g., 5.6.0 or 5.6.1)
    if [[ "$xz_version" =~ 5\.6\.[01] ]]; then
        echo "System is vulnerable to CVE-2024-3094 (xz backdoor)."
        update_xz_utils
    else
        echo "System is not vulnerable to CVE-2024-3094 (xz backdoor)."
    fi
else
    echo "xz-utils package is not installed. System is not vulnerable to CVE-2024-3094 (xz backdoor)."
    exit 0
fi

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Affected OS & Apps

Tukaani

4.8

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