CVE-2024-50193

HIGH EPSS 11.7%
Published Nov 8, 20241y ago · Modified Jun 17, 20262w ago
7.1 CVSS 3.1
High
Find Similar
Published Nov 8, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: x86/entry_32: Clear CPU buffers after register restore in NMI return CPU buffers are currently cleared after call to exc_nmi, but before register state is restored. This may be okay for MDS mitigation but not for RDFS. Because RDFS mitigation requires CPU buffers to be cleared when registers don't have any sensitive data. Move CLEAR_CPU_BUFFERS after RESTORE_ALL_NMI.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
11.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel* <5.10.228
linuxlinux_kernel*≥5.11  –  <5.15.169
linuxlinux_kernel*≥5.16  –  <6.1.114
linuxlinux_kernel*≥6.2  –  <6.6.58
linuxlinux_kernel*≥6.8  –  <6.11.5
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/227358e89703c344008119be7e8ffa3fdb5b92de
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/43778de19d2ef129636815274644b9c16e78c66b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/48a2440d0f20c826b884e04377ccc1e4696c84e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64adf22c4bc73ede920baca5defefb70f190cdbc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f44a5fc15b5cece0785bc07453db77d99b0a6de
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b6400eb0b347821efc57760221f8fb6d63b9548a
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/227358e89703c344008119be7e8ffa3fdb5b92de
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/43778de19d2ef129636815274644b9c16e78c66b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/48a2440d0f20c826b884e04377ccc1e4696c84e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64adf22c4bc73ede920baca5defefb70f190cdbc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f44a5fc15b5cece0785bc07453db77d99b0a6de
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b6400eb0b347821efc57760221f8fb6d63b9548a
    Patch