CVE-2023-52893

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

21/08/2024

Last modified:

11/09/2024

Description

In the Linux kernel, the following vulnerability has been resolved: gsmi: fix null-deref in gsmi_get_variable We can get EFI variables without fetching the attribute, so we must allow for that in gsmi. commit 859748255b43 ("efi: pstore: Omit efivars caching EFI varstore access layer") added a new get_variable call with attr=NULL, which triggers panic in gsmi.

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::::::::	3.0 (including)	4.14.304 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.271 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.230 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.165 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.90 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.2:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc4::::::

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

CVE-2023-52893

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools