Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags (Red Hat Red Hat Enterprise Linux 8)

CVE-2023-3812
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.34 % · percentile 28 ()
State
PUBLISHED
Published
Updated
Assigner
redhat
NVD status
Modified

Description

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hredhat
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · secalert@redhat.com (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Red Hat · Red Hat Enterprise Linux 8unaffected 0:4.18.0-513.9.1.rt7.311.el8_9 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:4.18.0-513.9.1.el8_9 < *
Red Hat · Red Hat Enterprise Linux 8
Red Hat · Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
Red Hat · Red Hat Enterprise Linux 8.1 Update Services for SAP Solutionsunaffected 0:4.18.0-147.94.1.el8_1 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 0:4.18.0-193.133.1.el8_2 < *
Red Hat · Red Hat Enterprise Linux 8.2 Telecommunications Update Serviceunaffected 0:4.18.0-193.133.1.rt13.184.el8_2 < *
Red Hat · Red Hat Enterprise Linux 8.2 Telecommunications Update Serviceunaffected 0:4.18.0-193.133.1.el8_2 < *
Red Hat · Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
Red Hat · Red Hat Enterprise Linux 8.2 Update Services for SAP Solutionsunaffected 0:4.18.0-193.133.1.el8_2 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:4.18.0-305.120.1.el8_4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Telecommunications Update Serviceunaffected 0:4.18.0-305.120.1.rt7.196.el8_4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Telecommunications Update Serviceunaffected 0:4.18.0-305.120.1.el8_4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Update Services for SAP Solutionsunaffected 0:4.18.0-305.120.1.el8_4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Supportunaffected 0:4.18.0-372.87.1.el8_6 < *
Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Support
Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Supportunaffected 0:4.18.0-477.43.1.el8_8 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:5.14.0-362.18.1.el9_3 < *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD