CVE-2024-1151

Local system crash via unbounded action recursion

Published Feb 11, 2024 · Updated Nov 7, 2025

Stack-based buffer overflow in the Open vSwitch kernel module in Red Hat Enterprise Linux allows local users to crash the system. The Netlink action-copy path recursively processes nested sample(), clone(), and dec_ttl() actions without enforcing a maximum stack depth. A local low-privileged user able to submit deeply nested Open vSwitch actions can cause a host-wide service interruption through a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in the Open vSwitch kernel module in Red Hat Enterprise Linux allows local users to crash the system. The Netlink action-copy path recursively processes nested sample(), clone(), and dec_ttl() actions without enforcing a maximum stack depth. A local low-privileged user able to submit deeply nested Open vSwitch actions can cause a host-wide service interruption through a kernel crash.

The record

CVE
CVE-2024-1151
Published
Feb 11, 2024
Updated
Nov 7, 2025
Vendor
Red Hat
Product
Red Hat Enterprise Linux 8
Classifications
CWE-121, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Red Hat · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.
Red Hat · Red Hat Enterprise Linux 9.2 Extended Update SupportAffected versions are unavailable in this record.
Red Hat · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.

Published CVSS scores

5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo