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CVE-2023-3812

Public on 2023-07-21
Modified on 2024-03-01
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.

Severity
Important
See what this means
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-12-01 18:21 ALAS2KERNEL-5.10-2022-023
Amazon Linux 2 - Kernel-5.15 Extra kernel 2022-12-01 18:21 ALAS2KERNEL-5.15-2022-011
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-12-01 18:21 ALAS2KERNEL-5.4-2022-039

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2023-3812 Mitre: CVE-2023-3812 FAQs regarding Amazon Linux ALAS/CVE Severity