CVE-2023-40550

2024-01-2917:15:08

CWE-125

[email protected]

web.nvd.nist.gov

cve-2023-40550

shim

sbat information

sensitive data

system boot

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

AI Score

6.4

Confidence

High

EPSS

0.001

Percentile

16.2%

JSON

An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system’s boot phase.

Affected configurations

Nvd

Node

redhatshimRange<15.8

Node

fedoraprojectfedoraMatch39

redhatenterprise_linuxMatch8.0

redhatenterprise_linuxMatch9.0

VendorProductVersionCPE
redhatshim*cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*
fedoraprojectfedora39cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhatenterprise_linux9.0cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
redhat	shim	*	cpe:2.3:a:redhat:shim::::::::
fedoraproject	fedora	39	cpe:2.3:o:fedoraproject:fedora:39:::::::*
redhat	enterprise_linux	8.0	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
redhat	enterprise_linux	9.0	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*