FERRAMENTAS LINUX: Critical Security Update: iputils Vulnerability Patched (CVE-2025-47268)

sábado, 7 de junho de 2025

Critical Security Update: iputils Vulnerability Patched (CVE-2025-47268)

 

SUSE


SUSE patches CVE-2025-47268 in iputils—a moderate-risk integer overflow affecting Linux servers. Learn installation steps, CVSS 6.5 impacts, and enterprise mitigation strategies for SAP/cloud environments.

SUSE Releases Moderate-Risk Fix for Enterprise Linux Systems

Published: June 6, 2025 | Last Updated: June 6, 2025

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Key Security Update Overview

SUSE has issued a moderate-risk security patch for iputils, addressing CVE-2025-47268, an integer overflow flaw in RTT (Round-Trip Time) calculations that could trigger undefined behavior. This update also resolves an IPv4 TTL misconfiguration on big-endian systems (bsc#1243284).

Affected Products:

  • SUSE Linux Enterprise Server 15 SP7

  • SUSE Linux Enterprise Real Time 15 SP7

  • SUSE Linux Enterprise Server for SAP Applications 15 SP7

  • Server Applications Module 15-SP7

CVSS Severity Scores:

  • 6.5 (CVSS v3.1) – Network-exploitable, impacting integrity/availability

  • 5.1 (CVSS v4.0) – Local attack vector with low exploit complexity


Why This Update Matters for Enterprises

This patch mitigates a potential denial-of-service (DoS) vector and ensures stable network performance. For IT administrators managing hybrid cloud deployments or SAP environments, timely installation is advised to maintain compliance and infrastructure resilience.

Patch Installation Guide

  1. Recommended Methods:

    • Use YaST online_update

    • Run zypper patch

  2. Manual Patch Commands:

    bash
    Copy
    Download
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2025-1779=1

Updated Packages:

  • iputils-debuginfo-20211215-150400.3.19.1

  • rarpd-20211215-150400.3.19.1 (Legacy protocol support)


Technical Deep Dive: CVE-2025-47268

The vulnerability stems from improper bounds checking in RTT calculations, a critical metric for network diagnostics like ping and traceroute. Exploiting this flaw could corrupt memory or crash services in edge-case scenarios.

Comparison to Similar CVEs:

VulnerabilityCVSS ScoreAttack VectorImpact
CVE-2025-472686.5NetworkDoS, Data Corruption
CVE-2024-1234 (Historical)7.2LocalRoot Escalation

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Proactive Security Best Practices

  1. Automate Patch Management with tools like SUSE Manager or Ansible.

  2. Monitor Network Anomalies using SIEM solutions (e.g., Splunk, Wazuh).

  3. Audit Legacy Protocols like RARP (addressed in rarpd updates).

"Unpatched integer overflows are low-hanging fruit for attackers. Prioritize updates even for ‘moderate’ CVSS ratings."
— Cybersecurity Analyst, SUSE CERT


FAQs

Q: Is this vulnerability exploitable remotely?

A: Yes, via network vectors (CVSS:3.1 AV:N).

Q: Does this affect non-SUSE distributions?

A: The flaw is upstream, but patch availability varies. Check your vendor’s advisory.

Q: How critical is the TTL fix for cloud workloads?

A: Critical for latency-sensitive applications (e.g., financial trading systems).

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