Linux Kernel Integer Overflow Vulnerability

Linux Kernel

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. Added to CISA KEV on 2026-01-26 (federal deadline 2026-02-16).

First seen: 26 Jan 2026
Last update: 26 Jan 2026, 12:00 UTC
Identifiers: CVE-2018-14634
Source: CISA KEV
On the menu as: Linux kernel

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Linux Kernel Integer Overflow Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: Linux Kernel
Ids: CVE-2018-14634

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. Added to CISA KEV on 2026-01-26 (federal deadline 2026-02-16).

## Steps
1. This touches infrastructure (linux). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2018-14634") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://access.redhat.com/errata/RHSA-2018:3540 https://nvd.nist.gov/vuln/detail/CVE-2018-14634 https://www.cve.org/CVERecord?id=CVE-2018-14634 https://www.kernel.org/
https://pwned.coffee/i/linux-kernel-integer-overflow-vulnerability-cve-2018-14634

Sources

Totalone hot coffee