Linux · Kernel
CVE-2018-14634
Linux Kernel Integer Overflow Vulnerability
What it is
An integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable.
CISA: 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.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Deadline for US federal agencies: February 16, 2026
- Added to the CISA list
- January 26, 2026
- Published
- September 25, 2018
- Severity
- High 7.8 CVSS 3.0
- Chance of attacks in the next 30 days (EPSS)
- 15% in the top 3.4% of all known vulnerabilities
- Weakness
- CWE-190
- More details
- NVD · CVE.org · CISA
All references (20)
- https://access.redhat.com/errata/RHSA-2018:3540
- https://access.redhat.com/errata/RHSA-2018:2925
- https://access.redhat.com/errata/RHSA-2018:3591
- https://usn.ubuntu.com/3775-1/
- https://access.redhat.com/errata/RHSA-2018:2933
- https://usn.ubuntu.com/3779-1/
- https://access.redhat.com/errata/RHSA-2018:2748
- https://access.redhat.com/errata/RHSA-2018:3590
- https://usn.ubuntu.com/3775-2/
- https://access.redhat.com/errata/RHSA-2018:2763
- https://access.redhat.com/errata/RHSA-2018:2924
- https://access.redhat.com/errata/RHSA-2018:3586
- https://access.redhat.com/errata/RHSA-2018:3643
- https://access.redhat.com/errata/RHSA-2018:2846
- https://security.netapp.com/advisory/ntap-20190204-0002/
- https://www.exploit-db.com/exploits/45516/
- http://www.securityfocus.com/bid/105407
- https://www.openwall.com/lists/oss-security/2018/09/25/4
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14634
- https://support.f5.com/csp/article/K20934447?utm_source=f5support&%3Butm_medium=RSS
More exploited flaws from Linux
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Sep 18, 2026 | Improper Check for Unusual or Exceptional Conditions | Kernel | Critical 9.8 | 3.3% |
| Sep 18, 2026 | Race Condition | Kernel | High 7.8 | 1.6% |
| Sep 18, 2026 | Out-of-Bounds Write | Kernel | High 8.8 | 0.9% |
| Aug 27, 2026 | Unspecified | Kernel | High 7.8 | 0.7% |
| Aug 26, 2026 | Out-of-Bounds Write | Kernel | High 7.8 | 8.9% |
| Jun 2, 2026 | Improper Authentication | Kernel | High 7.8 | 5.5% |
| May 1, 2026 | Incorrect Resource Transfer Between Spheres | Kernel | High 7.8 | 98% |
| Oct 6, 2025 | Heap Out-of-Bounds Write | Kernel | High 8.3 | 79% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.