CVE-2022-49883

Severity CVSS v4.0:

Pending analysis

Type:

CWE-125 Out-of-bounds Read

Publication date:

01/05/2025

Last modified:

10/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format On 64 bit host, if the guest doesn&#39;t have X86_FEATURE_LM, KVM will access 16 gprs to 32-bit smram image, causing out-ouf-bound ram access. On 32 bit host, the rsm_load_state_64/enter_smm_save_state_64 is compiled out, thus access overflow can&#39;t happen.

Impact

Vector 3.x

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

Base Score: 7.10 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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): High
Integrity (I): None
Availability (A): High

Base Score 3.x

7.10

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.0 (including)	6.0.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.1:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.1:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.1:rc3::::::

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

CVE-2022-49883

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools