---
id: "CVE-2018-14634"
kind: "vulnerability"
aliases: ["CVE-2018-14634"]
title: "An integer overflow flaw was found in the Linux kernel's create_elf_tables() function"
severity: "high"
cvss: 7.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Linux Kernel", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "paloaltonetworks pan-os", "fixed": ["7.1.23"], "affected": ">= 7.1.0, < 7.1.23", "ecosystem": "vendor"}, {"name": "paloaltonetworks pan-os", "fixed": ["8.0.16"], "affected": ">= 8.0.0, < 8.0.16", "ecosystem": "vendor"}, {"name": "paloaltonetworks pan-os", "fixed": ["8.1.7"], "affected": ">= 8.1.0, < 8.1.7", "ecosystem": "vendor"}, {"name": "f5 big-ip access policy manager", "fixed": ["11.6.4"], "affected": ">= 11.2.1, < 11.6.4", "ecosystem": "vendor"}, {"name": "f5 big-ip access policy manager", "fixed": ["12.1.5"], "affected": ">= 12.1.0, < 12.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip access policy manager", "fixed": ["13.1.1.5"], "affected": ">= 13.0.0, < 13.1.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip access policy manager", "fixed": ["14.0.1.1"], "affected": ">= 14.0.0, < 14.0.1.1", "ecosystem": "vendor"}, {"name": "f5 big-ip access policy manager", "fixed": ["14.1.0.6"], "affected": ">= 14.1.0, < 14.1.0.6", "ecosystem": "vendor"}, {"name": "f5 big-ip advanced firewall manager", "fixed": ["11.6.4"], "affected": ">= 11.2.1, < 11.6.4", "ecosystem": "vendor"}, {"name": "f5 big-ip advanced firewall manager", "fixed": ["12.1.5"], "affected": ">= 12.1.0, < 12.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip advanced firewall manager", "fixed": ["13.1.1.5"], "affected": ">= 13.0.0, < 13.1.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip advanced firewall manager", "fixed": ["14.0.1.1"], "affected": ">= 14.0.0, < 14.0.1.1", "ecosystem": "vendor"}, {"name": "f5 big-ip advanced firewall manager", "fixed": ["14.1.0.6"], "affected": ">= 14.1.0, < 14.1.0.6", "ecosystem": "vendor"}, {"name": "f5 big-ip analytics", "fixed": ["11.6.4"], "affected": ">= 11.2.1, < 11.6.4", "ecosystem": "vendor"}, {"name": "f5 big-ip analytics", "fixed": ["12.1.5"], "affected": ">= 12.1.0, < 12.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip analytics", "fixed": ["13.1.1.5"], "affected": ">= 13.0.0, < 13.1.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip analytics", "fixed": ["14.0.1.1"], "affected": ">= 14.0.0, < 14.0.1.1", "ecosystem": "vendor"}, {"name": "f5 big-ip analytics", "fixed": ["14.1.0.6"], "affected": ">= 14.1.0, < 14.1.0.6", "ecosystem": "vendor"}, {"name": "f5 big-ip application acceleration manager", "fixed": ["11.6.4"], "affected": ">= 11.2.1, < 11.6.4", "ecosystem": "vendor"}, {"name": "f5 big-ip application acceleration manager", "fixed": ["12.1.5"], "affected": ">= 12.1.0, < 12.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip application acceleration manager", "fixed": ["13.1.1.5"], "affected": ">= 13.0.0, < 13.1.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip application acceleration manager", "fixed": ["14.0.1.1"], "affected": ">= 14.0.0, < 14.0.1.1", "ecosystem": "vendor"}, {"name": "f5 big-ip application acceleration manager", "fixed": ["14.1.0.6"], "affected": ">= 14.1.0, < 14.1.0.6", "ecosystem": "vendor"}, {"name": "f5 big-ip application security manager", "fixed": ["11.6.4"], "affected": ">= 11.2.1, < 11.6.4", "ecosystem": "vendor"}, {"name": "f5 big-ip application security manager", "fixed": ["12.1.5"], "affected": ">= 12.1.0, < 12.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip application security manager", "fixed": ["13.1.1.5"], "affected": ">= 13.0.0, < 13.1.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip application security manager", "fixed": ["14.0.1.1"], "affected": ">= 14.0.0, < 14.0.1.1", "ecosystem": "vendor"}, {"name": "f5 big-ip application security manager", "fixed": ["14.1.0.6"], "affected": ">= 14.1.0, < 14.1.0.6", "ecosystem": "vendor"}, {"name": "f5 big-ip domain name system", "fixed": ["11.6.4"], "affected": ">= 11.2.1, < 11.6.4", "ecosystem": "vendor"}, {"name": "f5 big-ip domain name system", "fixed": ["12.1.5"], "affected": ">= 12.1.0, < 12.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip domain name system", "fixed": ["13.1.1.5"], "affected": ">= 13.0.0, < 13.1.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip domain name system", "fixed": ["14.0.1.1"], "affected": ">= 14.0.0, < 14.0.1.1", "ecosystem": "vendor"}, {"name": "f5 big-ip domain name system", "fixed": ["14.1.0.6"], "affected": ">= 14.1.0, < 14.1.0.6", "ecosystem": "vendor"}, {"name": "f5 big-ip edge gateway", "fixed": ["11.6.4"], "affected": ">= 11.2.1, < 11.6.4", "ecosystem": "vendor"}, {"name": "f5 big-ip edge gateway", "fixed": ["12.1.5"], "affected": ">= 12.1.0, < 12.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip edge gateway", "fixed": ["13.1.1.5"], "affected": ">= 13.0.0, < 13.1.1.5", "ecosystem": "vendor"}, {"name": "f5 big-ip edge gateway", "fixed": ["14.0.1.1"], "affected": ">= 14.0.0, < 14.0.1.1", "ecosystem": "vendor"}, {"name": "f5 big-ip edge gateway", "fixed": ["14.1.0.6"], "affected": ">= 14.1.0, < 14.1.0.6", "ecosystem": "vendor"}, {"name": "f5 big-ip fraud protection service", "fixed": ["11.6.4"], "affected": ">= 11.2.1, < 11.6.4", "ecosystem": "vendor"}, {"name": "f5 big-ip fraud protection service", "fixed": ["12.1.5"], "affected": ">= 12.1.0, < 12.1.5", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "infrastructure", "kubernetes", "linux", "self-hosted"]
not_affected_if: ["single-user-machine-with-no-untrusted-local-users"]
published_at: "2018-09-25T21:29:00+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T23:44:51+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-14634", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14634", "first_seen_at": "2026-10-23T23:44:51+00:00"}]
---

# An integer overflow flaw was found in the Linux kernel's create_elf_tables() function

The Linux kernel has an integer overflow in create_elf_tables() that lets a local user abuse a SUID or otherwise privileged binary to gain root. CISA lists it as actively exploited.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Linux Kernel affected ? fixed ?
- vendor:paloaltonetworks pan-os affected >= 7.1.0, < 7.1.23 fixed 7.1.23
- vendor:paloaltonetworks pan-os affected >= 8.0.0, < 8.0.16 fixed 8.0.16
- vendor:paloaltonetworks pan-os affected >= 8.1.0, < 8.1.7 fixed 8.1.7
- vendor:f5 big-ip access policy manager affected >= 11.2.1, < 11.6.4 fixed 11.6.4
- vendor:f5 big-ip access policy manager affected >= 12.1.0, < 12.1.5 fixed 12.1.5
- vendor:f5 big-ip access policy manager affected >= 13.0.0, < 13.1.1.5 fixed 13.1.1.5
- vendor:f5 big-ip access policy manager affected >= 14.0.0, < 14.0.1.1 fixed 14.0.1.1
- vendor:f5 big-ip access policy manager affected >= 14.1.0, < 14.1.0.6 fixed 14.1.0.6
- vendor:f5 big-ip advanced firewall manager affected >= 11.2.1, < 11.6.4 fixed 11.6.4
- vendor:f5 big-ip advanced firewall manager affected >= 12.1.0, < 12.1.5 fixed 12.1.5
- vendor:f5 big-ip advanced firewall manager affected >= 13.0.0, < 13.1.1.5 fixed 13.1.1.5
- vendor:f5 big-ip advanced firewall manager affected >= 14.0.0, < 14.0.1.1 fixed 14.0.1.1
- vendor:f5 big-ip advanced firewall manager affected >= 14.1.0, < 14.1.0.6 fixed 14.1.0.6
- vendor:f5 big-ip analytics affected >= 11.2.1, < 11.6.4 fixed 11.6.4
- vendor:f5 big-ip analytics affected >= 12.1.0, < 12.1.5 fixed 12.1.5
- vendor:f5 big-ip analytics affected >= 13.0.0, < 13.1.1.5 fixed 13.1.1.5
- vendor:f5 big-ip analytics affected >= 14.0.0, < 14.0.1.1 fixed 14.0.1.1
- vendor:f5 big-ip analytics affected >= 14.1.0, < 14.1.0.6 fixed 14.1.0.6
- vendor:f5 big-ip application acceleration manager affected >= 11.2.1, < 11.6.4 fixed 11.6.4
- vendor:f5 big-ip application acceleration manager affected >= 12.1.0, < 12.1.5 fixed 12.1.5
- vendor:f5 big-ip application acceleration manager affected >= 13.0.0, < 13.1.1.5 fixed 13.1.1.5
- vendor:f5 big-ip application acceleration manager affected >= 14.0.0, < 14.0.1.1 fixed 14.0.1.1
- vendor:f5 big-ip application acceleration manager affected >= 14.1.0, < 14.1.0.6 fixed 14.1.0.6
- vendor:f5 big-ip application security manager affected >= 11.2.1, < 11.6.4 fixed 11.6.4
- vendor:f5 big-ip application security manager affected >= 12.1.0, < 12.1.5 fixed 12.1.5
- vendor:f5 big-ip application security manager affected >= 13.0.0, < 13.1.1.5 fixed 13.1.1.5
- vendor:f5 big-ip application security manager affected >= 14.0.0, < 14.0.1.1 fixed 14.0.1.1
- vendor:f5 big-ip application security manager affected >= 14.1.0, < 14.1.0.6 fixed 14.1.0.6
- vendor:f5 big-ip domain name system affected >= 11.2.1, < 11.6.4 fixed 11.6.4
- vendor:f5 big-ip domain name system affected >= 12.1.0, < 12.1.5 fixed 12.1.5
- vendor:f5 big-ip domain name system affected >= 13.0.0, < 13.1.1.5 fixed 13.1.1.5
- vendor:f5 big-ip domain name system affected >= 14.0.0, < 14.0.1.1 fixed 14.0.1.1
- vendor:f5 big-ip domain name system affected >= 14.1.0, < 14.1.0.6 fixed 14.1.0.6
- vendor:f5 big-ip edge gateway affected >= 11.2.1, < 11.6.4 fixed 11.6.4
- vendor:f5 big-ip edge gateway affected >= 12.1.0, < 12.1.5 fixed 12.1.5
- vendor:f5 big-ip edge gateway affected >= 13.0.0, < 13.1.1.5 fixed 13.1.1.5
- vendor:f5 big-ip edge gateway affected >= 14.0.0, < 14.0.1.1 fixed 14.0.1.1
- vendor:f5 big-ip edge gateway affected >= 14.1.0, < 14.1.0.6 fixed 14.1.0.6
- vendor:f5 big-ip fraud protection service affected >= 11.2.1, < 11.6.4 fixed 11.6.4
- vendor:f5 big-ip fraud protection service affected >= 12.1.0, < 12.1.5 fixed 12.1.5

## Fix

Apply the kernel vendor's patched kernel for your distribution; CISA says to apply mitigations per vendor instructions, and the sources do not name a fixed version.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-14634
- 2026-10-23T23:44:51+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2018-14634

## From the sources

Linux Kernel contains an integer overflow vulnerability in the create_elf_tables() function which could allow an unprivileged local user with access to SUID (or otherwise privileged) binary to escalate their privileges on the system.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_