CVE-2026-43330

Katalog CVE

CVSS 7.8 · High EPSS 0,18%

Kerentanan Out-of-bounds Write pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.

Rincian

Terbit di NVD

8 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 6,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/31022cfde5235c45fa765f0aabeff5f0652852f2 patch
• https://git.kernel.org/stable/c/80688afb9c35b3934ce2d6be9973758915e2e0ef patch
• https://git.kernel.org/stable/c/aa545df011338df13f0833fc1fabcb15c0521959 patch
• https://git.kernel.org/stable/c/c2fb4984fe09fc176fe4c12d5e3edf626df6511d patch
• https://git.kernel.org/stable/c/cebc5ebd958346195b77f42d0cd5141b4e448fae patch