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5.5Orta

CVE-2026-6862Efivar: efivar: denial of service due to stack overflow in device path node parsing

Red Hat Red Hat Hardened Images; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 7; Red Hat Red Hat Enterprise Linux 8 Yayım: (6 ay önce)

Açıklama

A flaw was found in libefiboot, a component of efivar. The device path node parser in libefiboot fails to validate that each node's Length field is at least 4 bytes, which is the minimum size for an EFI (Extensible Firmware Interface) device path node header. A local user could exploit this vulnerability by providing a specially crafted device path node. This can lead to infinite recursion, causing stack exhaustion and a process crash, resulting in a denial of service (DoS).

Zayıflık türü (CWE): CWE-674

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
Red Hat Red Hat Enterprise Linux 10 —
Red Hat Red Hat Enterprise Linux 7 —
Red Hat Red Hat Enterprise Linux 8 —
Red Hat Red Hat Enterprise Linux 9 —
Red Hat Red Hat Hardened Images all versions
Red Hat Red Hat OpenShift Container Platform 4 —
ubuntu libefiboot —

Kaynaklar ve yamalar

CPE eşleşmeleri (NVD) (1)
  • cpe:2.3:a:ubuntu:libefiboot:-:*:*:*:*:*:*:*

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