CVE-2024-0646 | BDVDB-2026-222413 Detail

Red HatRed Hat Enterprise Linux 8

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

Weaknesses#

CWE-787 Out-of-bounds Write

References#

Show all 26

Exploit#

No public exploit known

History#

Version 12024-01-17Record published in the CVE List.
Version 22026-11-04Most recent update recorded in the CVE List.

Published

Published: 2024-01-17
Last modified: 2026-11-04

Vendor information

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8

All Red Hat vulnerabilities

Score

7.0 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 23.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Not stated
Fixed
0:4.18.0-513.18.1.rt7.320.el8_9
Vulnerable
Not stated
Fixed
0:4.18.0-513.18.1.el8_9

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.0 High

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

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).