CVE-2022-49611

MEDIUM EPSS 18.5%
Published Feb 26, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated.

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
18.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel* <4.14.297
linuxlinux_kernel*≥4.15  –  <4.19.266
linuxlinux_kernel*≥4.20  –  <5.4.217
linuxlinux_kernel*≥5.5  –  <5.10.133
linuxlinux_kernel*≥5.11  –  <5.15.57
linuxlinux_kernel*≥5.16  –  <5.18.14
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d323b99ff5c8c57005184056d65f6af5b0479d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4d7f72b6e1bc630bec7e4cd51814bc2b092bf153
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c38306e2e9257af4af2819aa287a4711ff36329
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8d5cff499a6d740c91ff37963907e0e983c37f0f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9756bba28470722dacb79ffce554336dd1f6a6cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f744b88dfc201bf8092833ec70b23c720188b527
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d323b99ff5c8c57005184056d65f6af5b0479d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4d7f72b6e1bc630bec7e4cd51814bc2b092bf153
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c38306e2e9257af4af2819aa287a4711ff36329
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8d5cff499a6d740c91ff37963907e0e983c37f0f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9756bba28470722dacb79ffce554336dd1f6a6cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f744b88dfc201bf8092833ec70b23c720188b527
    Patch