CVE-2024-26598

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

23/02/2024

Last modified:

05/11/2024

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache There is a potential UAF scenario in the case of an LPI translation cache hit racing with an operation that invalidates the cache, such as a DISCARD ITS command. The root of the problem is that vgic_its_check_cache() does not elevate the refcount on the vgic_irq before dropping the lock that serializes refcount changes. Have vgic_its_check_cache() raise the refcount on the returned vgic_irq and add the corresponding decrement after queueing the interrupt.

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.4 (including)	5.4.269 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.209 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.148 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.75 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.14 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.7.2 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:::::::*

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

CVE-2024-26598

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools