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Advisory severityLow2.5Red Hat Linux

Low [CVE-2025-6170] stack buffer overflow in xmllint interactive shell command handling

This low-severity Red Hat Linux advisory covers CVE-2025-6170 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2025-6170 Source published Source updated

VulniPulse record published

CVE-2025-6170
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

A flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash.

This issue might allow attackers to run harmful code in rare configurations without modern protections. The Red Hat Product Security team has rated the severity of this vulnerability as Low, since it affects only the interactive shell mode of the xmllint tool and requires a user to manually run the tool and enter or receive specially crafted input.

The exploitation requires local access and a highly specific usage scenario that is uncommon in typical environments. While it can cause a crash, the impact is limited to availability, and exploitation is unlikely in real-world deployments.

Weakness: CWE-121.

Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; and 23 more.

Is CVE-2025-6170 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2025-6170 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2025-6170?

Upgrade to a fixed release named by Red Hat:

  • libxml2-0:2.12.5-10.el10_2.2
  • libxml2-0:2.12.5-9.el10_0.2
  • libxml2-0:2.9.7-21.el8_10.6
  • libxml2-0:2.9.7-13.el8_6.15
  • libxml2-0:2.9.7-16.el8_8.15
  • libxml2-0:2.9.13-14.el9_8.2
  • libxml2-0:2.9.13-3.el9_2.12
  • libxml2-0:2.9.13-13.el9_4.2
  • libxml2-0:2.9.13-12.el9_6.3
  • cert-manager/jetstack-cert-manager-acmesolver-rhel9:1791371080
  • cert-manager/jetstack-cert-manager-rhel9:1791371069
  • cert-manager/cert-manager-operator-rhel9:1791788287

38 more fixed releases are listed below.

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 17 days ago·verify at source

Fixed versions
  • libxml2-0:2.12.5-10.el10_2.2
  • libxml2-0:2.12.5-9.el10_0.2
  • libxml2-0:2.9.7-21.el8_10.6
  • libxml2-0:2.9.7-13.el8_6.15
  • libxml2-0:2.9.7-16.el8_8.15
  • libxml2-0:2.9.13-14.el9_8.2
  • libxml2-0:2.9.13-3.el9_2.12
  • libxml2-0:2.9.13-13.el9_4.2
  • libxml2-0:2.9.13-12.el9_6.3
  • cert-manager/jetstack-cert-manager-acmesolver-rhel9:1791371080
  • cert-manager/jetstack-cert-manager-rhel9:1791371069
  • cert-manager/cert-manager-operator-rhel9:1791788287
  • cert-manager/cert-manager-istio-csr-rhel9:1791378395
  • cert-manager/cert-manager-operator-bundle:1791970484
  • cert-manager/jetstack-cert-manager-acmesolver-rhel9:1791459707
  • cert-manager/jetstack-cert-manager-rhel9:1791459711
  • cert-manager/cert-manager-istio-csr-rhel9:1791459759
  • cert-manager/cert-manager-operator-rhel9:1789029076
  • cert-manager/cert-manager-operator-bundle:1791966259
  • cert-manager/jetstack-cert-manager-rhel9:1790223279
  • cert-manager/cert-manager-istio-csr-rhel9:1790223719
  • cert-manager/cert-manager-operator-rhel9:1790272426
  • cert-manager/jetstack-cert-manager-acmesolver-rhel9:1790589998
  • cert-manager/jetstack-cert-manager-rhel9:1790589912
  • cert-manager/cert-manager-istio-csr-rhel9:1790589914
  • cert-manager/cert-manager-operator-rhel9:1790589855
  • cert-manager/cert-manager-trust-manager-rhel9:1790598593
  • rhaiis/model-opt-cuda-rhel9:1790621714
  • rhaiis/vllm-cuda-rhel9:1790621718
  • rhaiis/vllm-rocm-rhel9:1790621713
  • rhaii/vllm-rocm-rhel9:1791425869
  • rhaii/vllm-gaudi-rhel9:1791427182
  • rhaii/model-opt-cuda-rhel9:1791803821
  • rhaii/vllm-cuda-rhel9:1791473631
  • rhaii/vllm-spyre-rhel9:1791818357
  • rhaii/vllm-cpu-rhel9:1791473614
  • discovery/discovery-server-rhel9:1784821670
  • discovery/discovery-ui-rhel9:1784821750
  • libxml2-main-2.15.2-0.3.hum1
  • insights-proxy/insights-proxy-container-rhel9:1786433656
  • RHSA-2026:39304
  • RHSA-2026:70596
  • RHSA-2026:36734
  • RHSA-2026:79120
  • RHSA-2026:79119
  • RHSA-2026:39317
  • RHSA-2026:79118
  • RHSA-2026:79121
  • RHSA-2026:70639
  • RHSA-2026:82304

Official advisory · high-confidence parse· fetched 17 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to a widespread installation base, or stability. It is strongly recommended to apply the upstream patch once available.

Official advisory · high-confidence parse· fetched 17 days ago·verify at source

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