CVE-2023-3812

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2023
Source publication: Jul 24, 2023
Source updated: Feb 26, 2026
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

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.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Red Hat Enterprise Linux 8

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8
Platforms: Unknown
Default status: affected
Package: kernel-rt
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-513.9.1.rt7.311.el8_9	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-513.9.1.el8_9	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8
Platforms: Unknown
Default status: unaffected
Package: kpatch-patch
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
Platforms: Unknown
Default status: unaffected
Package: kpatch-patch
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-147.94.1.el8_1	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.2 Advanced Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.2 Advanced Update Support
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.2 Advanced Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-193.133.1.el8_2	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.2 Telecommunications Update Service

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update Service
Platforms: Unknown
Default status: affected
Package: kernel-rt
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.2 Telecommunications Update Service · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-193.133.1.rt13.184.el8_2	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.2 Telecommunications Update Service

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update Service
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.2 Telecommunications Update Service · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-193.133.1.el8_2	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
Platforms: Unknown
Default status: unaffected
Package: kpatch-patch
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-193.133.1.el8_2	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-305.120.1.el8_4	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.4 Telecommunications Update Service

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Platforms: Unknown
Default status: affected
Package: kernel-rt
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.4 Telecommunications Update Service · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-305.120.1.rt7.196.el8_4	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.4 Telecommunications Update Service

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.4 Telecommunications Update Service · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-305.120.1.el8_4	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-305.120.1.el8_4	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Platforms: Unknown
Default status: unaffected
Package: kpatch-patch
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 8.6 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.6 Extended Update Support
Platforms: Unknown
Default status: unaffected
Package: kpatch-patch
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 8.6 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.6 Extended Update Support
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.6 Extended Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-372.87.1.el8_6	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.8 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.8 Extended Update Support
Platforms: Unknown
Default status: unaffected
Package: kpatch-patch
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 8.8 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.8 Extended Update Support
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.8 Extended Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-477.43.1.el8_8	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:5.14.0-362.18.1.el9_3	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9
Platforms: Unknown
Default status: unaffected
Package: kpatch-patch
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 9

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:5.14.0-362.18.1.el9_3	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9.0 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9.0 Extended Update Support
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9.0 Extended Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:5.14.0-70.80.1.el9_0	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9.0 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9.0 Extended Update Support
Platforms: Unknown
Default status: affected
Package: kernel-rt
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9.0 Extended Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:5.14.0-70.80.1.rt21.151.el9_0	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9.0 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9.0 Extended Update Support
Platforms: Unknown
Default status: unaffected
Package: kpatch-patch
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 9.2 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9.2 Extended Update Support
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9.2 Extended Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:5.14.0-284.40.1.el9_2	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9.2 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9.2 Extended Update Support
Platforms: Unknown
Default status: affected
Package: kernel-rt
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9.2 Extended Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:5.14.0-284.40.1.rt14.325.el9_2	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9.2 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9.2 Extended Update Support
Platforms: Unknown
Default status: unaffected
Package: kpatch-patch
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Virtualization 4 for Red Hat Enterprise Linux 8

Vendor: Red Hat
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
Platforms: Unknown
Default status: affected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:4.18.0-372.87.1.el8_6	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 6

Vendor: Red Hat
Product: Red Hat Enterprise Linux 6
Platforms: Unknown
Default status: unaffected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 7

Vendor: Red Hat
Product: Red Hat Enterprise Linux 7
Platforms: Unknown
Default status: unaffected
Package: kernel
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 7

Vendor: Red Hat
Product: Red Hat Enterprise Linux 7
Platforms: Unknown
Default status: unaffected
Package: kernel-rt
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 9

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9
Platforms: Unknown
Default status: affected
Package: kernel-rt
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.