CVE-2022-49611

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

26/02/2025

Last modified:

23/10/2025

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		4.14.297 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.266 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.217 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.133 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.57 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.18.14 (excluding)
cpe:2.3:o:linux:linux_kernel:5.19:rc1::::::
cpe:2.3:o:linux:linux_kernel:5.19:rc2::::::
cpe:2.3:o:linux:linux_kernel:5.19:rc3::::::
cpe:2.3:o:linux:linux_kernel:5.19:rc4::::::
cpe:2.3:o:linux:linux_kernel:5.19:rc5::::::
cpe:2.3:o:linux:linux_kernel:5.19:rc6::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-49611

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools