CVE-2025-70101

Katalog CVE

CVSS 6.5 · Medium EPSS 0,29%

Kerentanan Out-of-bounds Read pada gkostka lwext4. Skor CVSS 3.1 6.5 (Medium) menurut CISA ADP.

Deskripsi (NVD)

An out-of-bounds read in the ext4_ext_binsearch_idx function in src/ext4_extent.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by supplying a specially crafted ext4 filesystem image. The vulnerability occurs due to insufficient validation of extent header fields before performing a binary search over extent index entries, which can result in invalid pointer calculations and an out-of-bounds memory read during extent tree traversal.

Rincian

Terbit di NVD

3 Juni 2026

Terakhir diubah

22 Juli 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read

EPSS (30 hari)

0,29% peluang dieksploitasi; lebih tinggi dari 20,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/gkostka/lwext4/issues/91 exploit · issue tracking · patch
• https://infosec.exchange/@sigdevel/116668958927817708 exploit · patch · advisory pihak ketiga
• https://github.com/sigdevel/pocs/blob/main/res/lwext4/3/sig11_lwext4_ext4_extent_815 exploit
• http://www.openwall.com/lists/oss-security/2026/06/29/6