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Dracut: dracut: root code execution via dhcp options command injection (Red Hat Red Hat Enterprise Linux 10)

CVE-2026-6893
HIGH 7.5

En bref

Source
NVD
EPSS
EPSS 1.27 % · centile 70 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
redhat
Statut NVD
Awaiting Analysis

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Description

A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP (Dynamic Host Configuration Protocol) options, such as a malicious hostname, to a system using dracut's legacy DHCP path. These options are improperly handled and written into temporary shell scripts without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs, potentially compromising the system's boot and network behavior.

Faiblesses (CWE)

  • CWE-78 — Injection de commande système

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hredhat
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hredhat-SADP
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · secalert@redhat.com (Secondary)
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Red Hat · Red Hat Enterprise Linux 10unaffected 0:107-7.el10_2 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:105-4.el10_0.1 < *
Red Hat · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONunaffected 0:004-413.el6_10 < *
Red Hat · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONunaffected 0:004-414.el6_10 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:033-577.el7_9 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:049-244.git20260529.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:049-138.git20220131.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:049-138.git20220131.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:049-203.git20220511.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 0:049-203.git20220511.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:049-223.git20230119.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:049-223.git20230119.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:057-115.git20260527.el9_8 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:057-115.git20260527.el9_8 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:057-25.git20250717.el9_2.2 < *
Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:057-54.git20250423.el9_4.3 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:057-89.git20250311.el9_6.1 < *
Red Hat · Red Hat OpenShift Container Platform 4.12unaffected 412.86.202610250235-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.13unaffected 413.92.202609080414-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.14unaffected 414.92.202609011250-0 < *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD