PT-2024-7687 · Linux+5 · Linux Kernel+5

Syzbot · Published 2024-02-19 · Updated 2025-10-03 · CVE-2024-26789

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to an out-of-bounds access in the crypto: arm64/neonbs component of the Linux kernel, specifically in the bit-sliced implementation of AES-CTR. This implementation operates on blocks of 128 bytes and falls back to the plain NEON version for tail blocks or inputs shorter than 128 bytes. The fallback fails to account for the plain NEON glue code's behavior of copying inputs shorter than 16 bytes into a temporary buffer, potentially resulting in out-of-bounds accesses.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

ALT-PU-2025-12647

AZL-59490

BDU:2024-09133

CVE-2024-26789

DSA-5658-1

USN-6895-1

USN-6895-2

USN-6895-3

USN-6895-4

USN-6900-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Linux Kernel

Red Os

Ubuntu

References · 141

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26789.json · Exploit
• https://ubuntu.com/security/CVE-2023-52642 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26733 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26643 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26698 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26920 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26601 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26824 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26708 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26702 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26693 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6895-3 · Vendor Advisory
• https://git.kernel.org/stable/c/1291d278b5574819a7266568ce4c28bce9438705 · Patch
• https://ubuntu.com/security/CVE-2024-26602 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26820 · Vendor Advisory