CVE-2026-34961

תיאור (מקור, אנגלית)

barebox prior to version 2026.04.0 contains out-of-bounds read vulnerabilities in ext4 extent parsing due to missing validation of the eh_entries field against buffer capacity in fs/ext4/ext4_common.c. Attackers can supply a malicious ext4 filesystem image via USB, SD card, or network boot to trigger heap out-of-bounds reads during boot-time filesystem parsing, potentially redirecting reads to arbitrary disk offsets.

מדדים

CVSS 3.1

7.7 (HIGH) מקור הציון: NVD CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS 4.0

6.9 (MEDIUM) מקור הציון: CNA CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-3/8/2026

CWE

CWE-125

מוצרים מושפעים

pengutronix: barebox

קישורים

• https://github.com/barebox/barebox Product
• https://github.com/barebox/barebox/releases/tag/v2026.04.0 Release Notes
• https://www.vulncheck.com/advisories/barebox-ext4-extent-parsing-out-of-bounds‮… Third Party Advisory
• https://y637f9qq2x.com/posts/barebox-sandbox-vulns/