CVE record · CVE-2023-6546

Kernel: gsm multiplexing race condition leads to privilege escalation

CVSS 7.0 HighEPSS 0.0073 · 54th percentile

Published by the CVE Program (CNA: redhat) at 21 Dec 2023, 20:01 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 8 Package name: kernel-rt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-513.24.1.rt7.326.el8_9 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-513.24.1.el8_9 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: kpatch-patch https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-193.136.1.el8_2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-305.134.1.el8_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Telecommunications Update Service Package name: kernel-rt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-305.134.1.rt7.210.el8_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Telecommunications Update Service Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-305.134.1.el8_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-305.134.1.el8_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Package name: kpatch-patch https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-372.93.1.el8_6 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Package name: kpatch-patch https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 8.8 Extended Update Support Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-477.55.1.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Extended Update Support Package name: kpatch-patch https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 9 Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-427.13.1.el9_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-427.13.1.el9_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Extended Update Support Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-70.93.2.el9_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Extended Update Support Package name: kernel-rt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-70.93.1.rt21.165.el9_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Extended Update Support Package name: kpatch-patch https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 9.2 Extended Update Support Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-284.55.1.el9_2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Extended Update Support Package name: kernel-rt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-284.55.1.rt14.340.el9_2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Extended Update Support Package name: kpatch-patch https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:4.18.0-372.93.1.el8_6 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/cluster-logging-operator-bundle https://catalog.redhat.com/software/containers/	unaffected v5.7.13-16 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/cluster-logging-rhel8-operator https://catalog.redhat.com/software/containers/	unaffected v5.7.13-7 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/elasticsearch6-rhel8 https://catalog.redhat.com/software/containers/	unaffected v6.8.1-408 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/elasticsearch-operator-bundle https://catalog.redhat.com/software/containers/	unaffected v5.7.13-19 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/elasticsearch-proxy-rhel8 https://catalog.redhat.com/software/containers/	unaffected v1.0.0-480 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/elasticsearch-rhel8-operator https://catalog.redhat.com/software/containers/	unaffected v5.7.13-9 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/eventrouter-rhel8 https://catalog.redhat.com/software/containers/	unaffected v0.4.0-248 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/fluentd-rhel8 https://catalog.redhat.com/software/containers/	unaffected v1.14.6-215 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/kibana6-rhel8 https://catalog.redhat.com/software/containers/	unaffected v6.8.1-431 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/log-file-metric-exporter-rhel8 https://catalog.redhat.com/software/containers/	unaffected v1.1.0-228 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/logging-curator5-rhel8 https://catalog.redhat.com/software/containers/	unaffected v5.8.1-471 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/logging-loki-rhel8 https://catalog.redhat.com/software/containers/	unaffected v2.9.6-15 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/logging-view-plugin-rhel8 https://catalog.redhat.com/software/containers/	unaffected v5.7.13-3 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/loki-operator-bundle https://catalog.redhat.com/software/containers/	unaffected v5.7.13-27 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/loki-rhel8-operator https://catalog.redhat.com/software/containers/	unaffected v5.7.13-12 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/lokistack-gateway-rhel8 https://catalog.redhat.com/software/containers/	unaffected v0.1.0-527 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/opa-openshift-rhel8 https://catalog.redhat.com/software/containers/	unaffected v0.1.0-225 to before * rpm Other versions: affected
Red Hat	RHOL-5.7-RHEL-8 Package name: openshift-logging/vector-rhel8 https://catalog.redhat.com/software/containers/	unaffected v0.28.1-57 to before * rpm Other versions: affected

And 4 more products. The full list is on the CVE record.

Identifiers: CVE-2023-6546
CNA: redhat
Weakness (CWE): CWE-366
Tags: Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.2 Advanced Update Support
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Red Hat Enterprise Linux 8.6 Extended Update Support
Red Hat Enterprise Linux 8.8 Extended Update Support
Red Hat Enterprise Linux 9
CWE-366
Published: 21 Dec 2023
Updated: 4 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.0	High	3.1	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0073, the 54th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

21 Dec 2023, 20:01 UTC Confirmed by the CVE List
21 Dec 2023, 20:15 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2024:0930 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:0937 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:1018 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:1019 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:1055 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:1250 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:1253 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:1306 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:1607 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:1612 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:1614 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:2093 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:2394 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:2621 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:2697 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:4577 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:4729 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:4731 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2024:4970 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2023-6546 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2255498 issue-trackingredhat
github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3
www.zerodayinitiative.com/advisories/ZDI-CAN-20527

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.