CVE-2023-4459
Assigner: redhat
Published: 2023-08-21T18:49:13.172Z
State: PUBLISHED
title: Kernel: vmxnet3: null pointer dereference in vmxnet3_rq_cleanup()
metrics: other: content: value: Moderate
namespace: https://access.redhat.com/security/updates/classification/
type: Red Hat severity rating
cvssV3_1: attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
version: 3.1
format: CVSS
descriptions: value: A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.
affected: vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Advanced Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel
defaultStatus: affected
versions: version: 0:4.18.0-193.133.1.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: kernel-rt
defaultStatus: affected
versions: version: 0:4.18.0-193.133.1.rt13.184.el8_2
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/a:redhat:rhel_tus:8.2::nfv
cpe:/a:redhat:rhel_tus:8.2::realtime
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Telecommunications Update Service
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel
defaultStatus: affected
versions: version: 0:4.18.0-193.133.1.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: kernel
defaultStatus: affected
versions: version: 0:4.18.0-193.133.1.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: kernel
defaultStatus: affected
versions: version: 0:4.18.0-305.125.1.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: kernel-rt
defaultStatus: affected
versions: version: 0:4.18.0-305.125.1.rt7.201.el8_4
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/a:redhat:rhel_tus:8.4::realtime
cpe:/a:redhat:rhel_tus:8.4::nfv
vendor: Red Hat
product: Red Hat Enterprise Linux 8.4 Telecommunications Update Service
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel
defaultStatus: affected
versions: version: 0:4.18.0-305.125.1.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: kernel
defaultStatus: affected
versions: version: 0:4.18.0-305.125.1.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: kernel
defaultStatus: affected
versions: version: 0:4.18.0-372.87.1.el8_6
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/a:redhat:rhel_eus:8.6::crb
cpe:/o:redhat:rhel_eus:8.6::baseos
cpe:/o:redhat:rhev_hypervisor:4.4::el8
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel
defaultStatus: affected
versions: version: 0:5.14.0-70.93.2.el9_0
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: kernel-rt
defaultStatus: affected
versions: version: 0:5.14.0-70.93.1.rt21.165.el9_0
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/a:redhat:rhel_eus:9.0::realtime
cpe:/a:redhat:rhel_eus:9.0::nfv
vendor: Red Hat
product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel
defaultStatus: affected
versions: version: 0:4.18.0-372.87.1.el8_6
lessThan: *
versionType: rpm
status: unaffected
cpes: cpe:/a:redhat:rhel_eus:8.6::crb
cpe:/o:redhat:rhel_eus:8.6::baseos
cpe:/o:redhat:rhev_hypervisor:4.4::el8
vendor: Red Hat
product: Red Hat Enterprise Linux 6
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel
defaultStatus: unknown
cpes: cpe:/o:redhat:enterprise_linux:6
vendor: Red Hat
product: Red Hat Enterprise Linux 7
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel
defaultStatus: unknown
cpes: cpe:/o:redhat:enterprise_linux:7
vendor: Red Hat
product: Red Hat Enterprise Linux 7
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel-rt
defaultStatus: unknown
cpes: cpe:/o:redhat:enterprise_linux:7
vendor: Red Hat
product: Red Hat Enterprise Linux 8
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel
defaultStatus: affected
cpes: cpe:/o:redhat:enterprise_linux:8
vendor: Red Hat
product: Red Hat Enterprise Linux 8
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel-rt
defaultStatus: affected
cpes: cpe:/o:redhat:enterprise_linux:8
vendor: Red Hat
product: Red Hat Enterprise Linux 9
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel
defaultStatus: affected
cpes: cpe:/o:redhat:enterprise_linux:9
vendor: Red Hat
product: Red Hat Enterprise Linux 9
collectionURL: https://access.redhat.com/downloads/content/package-browser/
packageName: kernel-rt
defaultStatus: affected
cpes: cpe:/o:redhat:enterprise_linux:9
datePublic: 2022-05-14T00:00:00+00:00
problemTypes: descriptions: cweId: CWE-476
description: NULL Pointer Dereference
type: CWE
x_redhatCweChain: CWE-476: NULL Pointer Dereference
workarounds: value: In order to mitigate this issue, prevent the affected code from being loaded by blacklisting the kernel module "vmxnet3". For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278
~~~
Exploiting this flaw will require CAP_NET_ADMIN access privilege in any user or network namespace.
~~~
timeline: time: 2023-06-28T00:00:00+00:00
value: Reported to Red Hat.
time: 2022-05-14T00:00:00+00:00
value: Made public.