CVE-2024-46707

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

13/09/2024

Last modified:

19/09/2024

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3 On a system with a GICv3, if a guest hasn&#39;t been configured with GICv3 and that the host is not capable of GICv2 emulation, a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2. We therefore try to emulate the SGI access, only to hit a NULL pointer as no private interrupt is allocated (no GIC, remember?). The obvious fix is to give the guest what it deserves, in the shape of a UNDEF exception.

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::::::::		5.10.225 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.166 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.107 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.48 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.10.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.11:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.11:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.11:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.11:rc4::::::

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

CVE-2024-46707

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools