CVE-2023-3812 Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags
An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Problem types: cwe_id: CWE-787
description: Out-of-bounds Write
Affected products: vendor: Red Hat
product: Red Hat Enterprise Linux 8
cpes: cpe:/a:redhat:enterprise_linux:8::nfv
cpe:/a:redhat:enterprise_linux:8::realtime
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8
cpes: cpe:/o:redhat:enterprise_linux:8::baseos
cpe:/a:redhat:enterprise_linux:8::crb
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8
cpes: cpe:/o:redhat:enterprise_linux:8::baseos
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
cpes: cpe:/o:redhat:rhel_e4s:8.1::baseos
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
cpes: cpe:/o:redhat:rhel_e4s:8.1::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Advanced Update Support
cpes: cpe:/o:redhat:rhel_e4s:8.2::baseos
cpe:/o:redhat:rhel_aus:8.2::baseos
cpe:/o:redhat:rhel_tus:8.2::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Telecommunications Update Service
cpes: cpe:/a:redhat:rhel_tus:8.2::realtime
cpe:/a:redhat:rhel_tus:8.2::nfv
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Telecommunications Update Service
cpes: cpe:/o:redhat:rhel_e4s:8.2::baseos
cpe:/o:redhat:rhel_aus:8.2::baseos
cpe:/o:redhat:rhel_tus: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_e4s:8.2::baseos
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
cpes: cpe:/o:redhat:rhel_e4s:8.2::baseos
cpe:/o:redhat:rhel_aus:8.2::baseos
cpe:/o:redhat:rhel_tus: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_tus:8.4::baseos
cpe:/o:redhat:rhel_aus: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:/a:redhat:rhel_tus:8.4::nfv
cpe:/a:redhat:rhel_tus:8.4::realtime
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.4 Telecommunications Update Service
cpes: cpe:/o:redhat:rhel_tus:8.4::baseos
cpe:/o:redhat:rhel_aus: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_tus:8.4::baseos
cpe:/o:redhat:rhel_aus: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_e4s:8.4::baseos
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.6 Extended Update Support
cpes: cpe:/o:redhat:rhel_eus:8.6::baseos
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.6 Extended Update Support
cpes: cpe:/o:redhat:rhel_eus:8.6::baseos
cpe:/a:redhat:rhel_eus:8.6::crb
cpe:/o:redhat:rhev_hypervisor:4.4::el8
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
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 8.8 Extended Update Support
cpes: cpe:/a:redhat:rhel_eus:8.8::crb
cpe:/o:redhat:rhel_eus:8.8::baseos
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9
cpes: cpe:/a:redhat:enterprise_linux:9::realtime
cpe:/a:redhat:enterprise_linux:9::crb
cpe:/o:redhat:enterprise_linux:9::baseos
cpe:/a:redhat:enterprise_linux:9::appstream
cpe:/a:redhat:enterprise_linux:9::nfv
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9
cpes: cpe:/o:redhat:enterprise_linux:9::baseos
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 9
cpes: cpe:/a:redhat:enterprise_linux:9::realtime
cpe:/a:redhat:enterprise_linux:9::crb
cpe:/o:redhat:enterprise_linux:9::baseos
cpe:/a:redhat:enterprise_linux:9::appstream
cpe:/a:redhat:enterprise_linux:9::nfv
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
cpes: cpe:/o:redhat:rhel_eus:9.0::baseos
cpe:/a:redhat:rhel_eus:9.0::crb
cpe:/a:redhat:rhel_eus:9.0::appstream
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
cpes: cpe:/a:redhat:rhel_eus:9.0::realtime
cpe:/a:redhat:rhel_eus:9.0::nfv
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9.0 Extended Update Support
cpes: cpe:/o:redhat:rhel_eus:9.0::baseos
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 9.2 Extended Update Support
cpes: cpe:/a:redhat:rhel_eus:9.2::crb
cpe:/o:redhat:rhel_eus:9.2::baseos
cpe:/a:redhat:rhel_eus:9.2::appstream
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 9.2 Extended Update Support
cpes: cpe:/a:redhat:rhel_eus:9.2::realtime
cpe:/a:redhat:rhel_eus:9.2::nfv
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: unaffected
vendor: Red Hat
product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
cpes: cpe:/o:redhat:rhel_eus:8.6::baseos
cpe:/a:redhat:rhel_eus:8.6::crb
cpe:/o:redhat:rhev_hypervisor:4.4::el8
default_status: affected
vendor: Red Hat
product: Red Hat Enterprise Linux 6
cpes: cpe:/o:redhat:enterprise_linux:6
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 7
cpes: cpe:/o:redhat:enterprise_linux:7
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 7
cpes: cpe:/o:redhat:enterprise_linux:7
default_status: unaffected
vendor: Red Hat
product: Red Hat Enterprise Linux 9
cpes: cpe:/o:redhat:enterprise_linux:9
default_status: affected
CVSS v3.1: attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 7.8
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
version: 3.1
Published: 2023-07-24T15:19:21.817Z