CVE-2024-0646

HIGH 7.0

Kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination

CVSS Score

7.0

EPSS Score

0.0%

EPSS Percentile

0th

An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CWE	CWE-787
Published	Jan 17, 2024
Last Updated	Nov 6, 2025

Stay Ahead of the Next One

Get instant alerts for

Be the first to know when new high vulnerabilities are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 8.2 Telecommunications Update Service

All versions affected

Red Hat / Red Hat Enterprise Linux 8.2 Telecommunications Update Service

All versions affected

Red Hat / Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

All versions affected

Red Hat / Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

All versions affected

Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 8.4 Telecommunications Update Service

All versions affected

Red Hat / Red Hat Enterprise Linux 8.4 Telecommunications Update Service

All versions affected

Red Hat / Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

All versions affected

Red Hat / Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

All versions affected

Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 8.8 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 8.8 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support

All versions affected

Red Hat / Red Hat Virtualization 4 for Red Hat Enterprise Linux 8

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / RHOL-5.8-RHEL-9

All versions affected

Red Hat / Red Hat Enterprise Linux 6

All versions affected

Red Hat / Red Hat Enterprise Linux 7

All versions affected

Red Hat / Red Hat Enterprise Linux 7

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗