vulnerability

Red Hat: CVE-2023-3812: kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags (Multiple Advisories)

Try Surface Command
Back to search
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Jul 24, 2023
Added
Nov 22, 2023
Modified
Sep 29, 2025

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.

Solutions

no-fix-redhat-rpm-packageredhat-upgrade-kernelredhat-upgrade-kernel-rt

References

    Title
    NEW

    Explore Exposure Command

    Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.

    Try it today