CVE-2025-21993

Katalog CVE

CVSS 7.1 · High EPSS 0,21%

Kerentanan Out-of-bounds Read pada linux kernel. Skor CVSS 3.1 7.1 (High) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic() When performing an iSCSI boot using IPv6, iscsistart still reads the /sys/firmware/ibft/ethernetX/subnet-mask entry. Since the IPv6 prefix length is 64, this causes the shift exponent to become negative, triggering a UBSAN warning. As the concept of a subnet mask does not apply to IPv6, the value is set to ~0 to suppress the warning message.

Rincian

Terbit di NVD

2 April 2025

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read

EPSS (30 hari)

0,21% peluang dieksploitasi; lebih tinggi dari 10,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/07e0d99a2f701123ad3104c0f1a1e66bce74d6e5 patch
• https://git.kernel.org/stable/c/2d1eef248107bdf3d5a69d0fde04c30a79a7bf5d patch
• https://git.kernel.org/stable/c/9bfa80c8aa4e06dff55a953c3fffbfc68a3a3b1c patch
• https://git.kernel.org/stable/c/a858cd58dea06cf85b142673deea8c5d87f11e70 patch
• https://git.kernel.org/stable/c/b253660fac5e0e9080d2c95e3a029e1898d49afb patch
• https://git.kernel.org/stable/c/b388e185bfad32bfed6a97a6817f74ca00a4318f patch
• https://git.kernel.org/stable/c/c1c6e527470e5eab0b2d57bd073530fbace39eab patch
• https://git.kernel.org/stable/c/f763c82db8166e28f45b7cc4a5398a7859665940 patch
• https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
• https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html