CVE-2023-6546 Kernel: gsm multiplexing race condition leads to privilege escalation
A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.
Problem types: cwe_id: CWE-366
description: Race Condition within a Thread
Affected products: vendor: Red Hat
product: Red Hat Enterprise Linux 8
cpes: cpe:/a:redhat:enterprise_linux:8::realtime
cpe:/a:redhat:enterprise_linux:8::nfv
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 8.2 Advanced Update Support
cpes: 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:/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_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 8.4 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:rhev_hypervisor:4.4::el8
cpe:/a:redhat:rhel_eus:8.6::crb
cpe:/o:redhat:rhel_eus:8.6::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: 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 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 9
cpes: cpe:/a:redhat:enterprise_linux:9::realtime
cpe:/a:redhat:enterprise_linux:9::nfv
cpe:/a:redhat:enterprise_linux:9::crb
cpe:/o:redhat:enterprise_linux:9::baseos
cpe:/a:redhat:enterprise_linux:9::appstream
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::nfv
cpe:/a:redhat:enterprise_linux:9::crb
cpe:/o:redhat:enterprise_linux:9::baseos
cpe:/a:redhat:enterprise_linux:9::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::appstream
cpe:/o:redhat:rhel_eus:9.0::baseos
cpe:/a:redhat:rhel_eus:9.0::crb
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::appstream
cpe:/a:redhat:rhel_eus:9.2::crb
cpe:/o:redhat:rhel_eus:9.2::baseos
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:rhev_hypervisor:4.4::el8
cpe:/a:redhat:rhel_eus:8.6::crb
cpe:/o:redhat:rhel_eus:8.6::baseos
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::el8
default_status: affected
vendor: Red Hat
product: RHOL-5.7-RHEL-8
cpes: cpe:/a:redhat:logging:5.7::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: HIGH
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 7
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
version: 3.1
Published: 2023-12-21T20:01:03.217Z