CVE-2024-43868

MEDIUM EPSS 12.7%
Published Aug 21, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 21, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: riscv/purgatory: align riscv_kernel_entry When alignment handling is delegated to the kernel, everything must be word-aligned in purgatory, since the trap handler is then set to the kexec one. Without the alignment, hitting the exception would ultimately crash. On other occasions, the kernel's handler would take care of exceptions. This has been tested on a JH7110 SoC with oreboot and its SBI delegating unaligned access exceptions and the kernel configured to handle them.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.19  –  <6.1.117
linuxlinux_kernel*≥6.2  –  <6.6.61
linuxlinux_kernel*≥6.7  –  <6.10.4
linuxlinux_kernel6.11any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/10ffafb456f293976c42f700578ef740467cb569
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d4aaf16a8255f7c71790e211724ba029609c5ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6e62dab357eea12db0fc62dea94c7a892888e6e8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fb197c5d2fd24b9af3d4697d0cf778645846d6d5
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/10ffafb456f293976c42f700578ef740467cb569
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d4aaf16a8255f7c71790e211724ba029609c5ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6e62dab357eea12db0fc62dea94c7a892888e6e8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fb197c5d2fd24b9af3d4697d0cf778645846d6d5
    Patch