CVE-2023-52893

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/32313c11bdc8a02c577abaf865be3664ab30410a	Patch
https://git.kernel.org/stable/c/6646d769fdb0ce4318ef9afd127f8526d1ca8393	Patch
https://git.kernel.org/stable/c/a769b05eeed7accc4019a1ed9799dd72067f1ce8	Patch
https://git.kernel.org/stable/c/ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd	Patch
https://git.kernel.org/stable/c/eb0421d90f916dffe96b4c049ddf01c0c50620d2	Patch
https://git.kernel.org/stable/c/ee5763ef829bd923033510de6d1df7c73f085e4b	Patch
https://git.kernel.org/stable/c/ffef77794fb5f1245c3249b86342bad2299accb5	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	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::::::

History

No history.

Information

Published : 2024-08-21 07:15

Updated : 2024-09-11 16:24

NVD link : CVE-2023-52893

Mitre link : CVE-2023-52893

CVE.ORG link : CVE-2023-52893

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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