CVE-2023-40548
Assigner: redhat
Published: 2024-01-29T14:53:44.319Z
State: PUBLISHED
title: Shim: interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems
metrics: other: content: value: Moderate
namespace: https://access.redhat.com/security/updates/classification/
type: Red Hat severity rating
cvssV3_1: attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 6.2
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
version: 3.1
format: CVSS
descriptions: value: A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
affected: vendor: Red Hat
product: Red Hat Enterprise Linux 7
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-3.el7
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:enterprise_linux:7::workstation
cpe:/o:redhat:enterprise_linux:7::client
cpe:/o:redhat:enterprise_linux:7::server
vendor: Red Hat
product: Red Hat Enterprise Linux 7
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim-signed
defaultStatus: affected
versions: version: 0:15.8-1.el7
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:enterprise_linux:7::workstation
cpe:/o:redhat:enterprise_linux:7::client
cpe:/o:redhat:enterprise_linux:7::server
vendor: Red Hat
product: Red Hat Enterprise Linux 8
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-4.el8_9
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:enterprise_linux:8::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Advanced Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-2.el8_2
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:rhel_aus:8.2::baseos
cpe:/o:redhat:rhel_e4s:8.2::baseos
cpe:/o:redhat:rhel_tus:8.2::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Telecommunications Update Service
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-2.el8_2
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:rhel_aus:8.2::baseos
cpe:/o:redhat:rhel_e4s:8.2::baseos
cpe:/o:redhat:rhel_tus:8.2::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-2.el8_2
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:rhel_aus:8.2::baseos
cpe:/o:redhat:rhel_e4s:8.2::baseos
cpe:/o:redhat:rhel_tus:8.2::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-2.el8_4
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:rhel_tus:8.4::baseos
cpe:/o:redhat:rhel_e4s:8.4::baseos
cpe:/o:redhat:rhel_aus:8.4::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 8.4 Telecommunications Update Service
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-2.el8_4
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:rhel_tus:8.4::baseos
cpe:/o:redhat:rhel_e4s:8.4::baseos
cpe:/o:redhat:rhel_aus:8.4::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-2.el8_4
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:rhel_tus:8.4::baseos
cpe:/o:redhat:rhel_e4s:8.4::baseos
cpe:/o:redhat:rhel_aus:8.4::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 8.6 Extended Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-2.el8_6
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:rhel_eus:8.6::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 8.8 Extended Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-2.el8
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/a:redhat:rhel_eus:8.8::crb
cpe:/o:redhat:rhel_eus:8.8::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 8.8 Extended Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim-unsigned-x64
defaultStatus: affected
versions: version: 0:15.8-2.el8
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/a:redhat:rhel_eus:8.8::crb
cpe:/o:redhat:rhel_eus:8.8::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 9
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-4.el9_3
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:enterprise_linux:9::baseos
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-3.el9
lessThan: *
versionType: rpm
status: unaffected
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
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim-unsigned-aarch64
defaultStatus: affected
versions: version: 0:15.8-2.el9
lessThan: *
versionType: rpm
status: unaffected
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
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim-unsigned-x64
defaultStatus: affected
versions: version: 0:15.8-2.el9
lessThan: *
versionType: rpm
status: unaffected
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
vendor: Red Hat
product: Red Hat Enterprise Linux 9.2 Extended Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: shim
defaultStatus: affected
versions: version: 0:15.8-3.el9_2
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/o:redhat:rhel_eus:9.2::baseos
datePublic: 2023-10-03T00:00:00+00:00
problemTypes: descriptions: cweId: CWE-787
description: Out-of-bounds Write
type: CWE
x_redhatCweChain: CWE-190->CWE-787: Integer Overflow or Wraparound leads to Out-of-bounds Write
workarounds: value: There's no available mitigation for this issue.
timeline: time: 2023-10-02T00:00:00+00:00
value: Reported to Red Hat.
time: 2023-10-03T00:00:00+00:00
value: Made public.