CVE-2023-40550 Shim: out-of-bound read in verify_buffer_sbat()
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.
Problem types: cwe_id: CWE-125
description: Out-of-bounds Read
Affected products: vendor: Red Hat
product: Red Hat Enterprise Linux 7
cpes: cpe:/o:redhat:enterprise_linux:7::server
cpe:/o:redhat:enterprise_linux:7::workstation
cpe:/o:redhat:enterprise_linux:7::client
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 7
cpes: cpe:/o:redhat:enterprise_linux:7::server
cpe:/o:redhat:enterprise_linux:7::workstation
cpe:/o:redhat:enterprise_linux:7::client
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8
cpes: cpe:/o:redhat:enterprise_linux:8::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Advanced Update Support
cpes: cpe:/o:redhat:rhel_tus:8.2::baseos
cpe:/o:redhat:rhel_e4s:8.2::baseos
cpe:/o:redhat:rhel_aus:8.2::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Telecommunications Update Service
cpes: cpe:/o:redhat:rhel_tus:8.2::baseos
cpe:/o:redhat:rhel_e4s:8.2::baseos
cpe:/o:redhat:rhel_aus:8.2::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
cpes: cpe:/o:redhat:rhel_tus:8.2::baseos
cpe:/o:redhat:rhel_e4s:8.2::baseos
cpe:/o:redhat:rhel_aus:8.2::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
cpes: cpe:/o:redhat:rhel_aus:8.4::baseos
cpe:/o:redhat:rhel_tus:8.4::baseos
cpe:/o:redhat:rhel_e4s:8.4::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.4 Telecommunications Update Service
cpes: cpe:/o:redhat:rhel_aus:8.4::baseos
cpe:/o:redhat:rhel_tus:8.4::baseos
cpe:/o:redhat:rhel_e4s:8.4::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
cpes: cpe:/o:redhat:rhel_aus:8.4::baseos
cpe:/o:redhat:rhel_tus:8.4::baseos
cpe:/o:redhat:rhel_e4s:8.4::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.6 Extended Update Support
cpes: cpe:/o:redhat:rhel_eus:8.6::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.8 Extended Update Support
cpes: cpe:/o:redhat:rhel_eus:8.8::baseos
cpe:/a:redhat:rhel_eus:8.8::crb
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.8 Extended Update Support
cpes: cpe:/o:redhat:rhel_eus:8.8::baseos
cpe:/a:redhat:rhel_eus:8.8::crb
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9
cpes: cpe:/o:redhat:enterprise_linux:9::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
cpes: cpe:/a:redhat:rhel_eus:9.0::appstream
cpe:/a:redhat:rhel_eus:9.0::crb
cpe:/o:redhat:rhel_eus:9.0::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
cpes: cpe:/a:redhat:rhel_eus:9.0::appstream
cpe:/a:redhat:rhel_eus:9.0::crb
cpe:/o:redhat:rhel_eus:9.0::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
cpes: cpe:/a:redhat:rhel_eus:9.0::appstream
cpe:/a:redhat:rhel_eus:9.0::crb
cpe:/o:redhat:rhel_eus:9.0::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9.2 Extended Update Support
cpes: cpe:/o:redhat:rhel_eus:9.2::baseos
default_status: affected
CVSS v3.1: attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
version: 3.1
Published: 2024-01-29T16:29:23.050Z