CVE-2026-31430: Linux Kernel: sınır dışı okuma

Açıklama (NVD)

In the Linux kernel, the following vulnerability has been resolved: X.509: Fix out-of-bounds access when parsing extensions Leo reports an out-of-bounds access when parsing a certificate with empty Basic Constraints or Key Usage extension because the first byte of the extension is read before checking its length. Fix it. The bug can be triggered by an unprivileged user by submitting a specially crafted certificate to the kernel through the keyrings(7) API. Leo has demonstrated this with a proof-of-concept program responsibly disclosed off-list.

Özet bilgiler

Ürün

Linux Linux Kernel

CVSS v3.1

7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS

%0,08 (yüzdelik 0)

CWE

CWE-125

Yama

Mevcut

Etkilenen sürümler

Kaynaklar

• NVD kaydı
• git.kernel.org
• git.kernel.org
• git.kernel.org
• git.kernel.org
• git.kernel.org
• CWE-125