CVE-2026-34962

Katalog CVE

CVSS 5.5 · Medium EPSS 0,18%

Kerentanan Loop with Unreachable Exit Condition ('Infinite Loop') pada pengutronix barebox. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

barebox version prior to 2026.04.0 contains a denial-of-service vulnerability in ext4 directory parsing in fs/ext4/ext4_common.c where the ext4fs_iterate_dir() function fails to validate that directory entry length values are non-zero. Attackers can supply a malicious ext4 filesystem image with a crafted directory entry containing a direntlen value of 0 to cause an infinite loop during directory listing or path resolution, resulting in the boot process hanging indefinitely.

Rincian

Terbit di NVD

11 Mei 2026

Terakhir diubah

18 Juli 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 7,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.vulncheck.com/advisories/barebox-ext4-directory-parsing-infinite-loop-denial-of-service advisory pihak ketiga
• https://github.com/barebox/barebox product
• https://github.com/barebox/barebox/releases/tag/v2026.04.0 release notes
• https://y637f9qq2x.com/posts/barebox-sandbox-vulns/