CVE-2026-43107

Katalog CVE

CVSS 5.5 · Medium EPSS 0,16%

Kerentanan Incorrect Calculation of Buffer Size pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: xfrm: account XFRMA_IF_ID in aevent size calculation xfrm_get_ae() allocates the reply skb with xfrm_aevent_msgsize(), then build_aevent() appends attributes including XFRMA_IF_ID when x->if_id is set. xfrm_aevent_msgsize() does not include space for XFRMA_IF_ID. For states with if_id, build_aevent() can fail with -EMSGSIZE and hit BUG_ON(err < 0) in xfrm_get_ae(), turning a malformed netlink interaction into a kernel panic. Account XFRMA_IF_ID in the size calculation unconditionally and replace the BUG_ON with normal error unwinding.

Rincian

Terbit di NVD

6 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

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-131: Incorrect Calculation of Buffer Size

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/2c41283d94af943a05f7f2cc1a01f0c872f3cf43 patch
• https://git.kernel.org/stable/c/58e5735d1a5373652f405a0c16e54ac04aaab0ad patch
• https://git.kernel.org/stable/c/7081d46d32312f1a31f0e0e99c6835a394037599 patch
• https://git.kernel.org/stable/c/e62e322ea20be78e346e4b49f9a6b9f03313af4c patch