What is CVE-2018-14634?

CVE-2018-14634 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Integer Overflow flaw (CWE-190). CVE-2018-14634 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.

What is the CVSS score for CVE-2018-14634?

CVE-2018-14634 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2018-14634?

No patch is currently available for CVE-2018-14634. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2018-14634 actively exploited?

Yes — CVE-2018-14634 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild with a CVSS score of 7.8 (High severity).

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2018-14634

High KEV — Actively Exploited

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.

Package Linux Kernel

Published 2018-09-25

Last modified 2026-01-27

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-190

CVE-2018-14634 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2018-14634 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Openwall
http://www.openwall.com/lists/oss-security/2021/07/20/2

Mailing List Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/105407

Third Party Advisory VDB Entry Broken Link
Red Hat
https://access.redhat.com/errata/RHSA-2018:2748

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:2763

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:2846

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:2924

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:2925

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:2933

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:3540

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:3586

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:3590

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:3591

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:3643

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14634

Issue Tracking Third Party Advisory
Security
https://security.paloaltonetworks.com/CVE-2018-14634

Third Party Advisory
Support
https://support.f5.com/csp/article/K20934447?utm_source=f5support&amp%3Butm_medium=RSS

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3775-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3775-2/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3779-1/

Third Party Advisory
Exploit-DB
https://www.exploit-db.com/exploits/45516/

Exploit Third Party Advisory VDB Entry
Openwall
https://www.openwall.com/lists/oss-security/2018/09/25/4

Exploit Mailing List Third Party Advisory
CISA
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14634

US Government Resource
Kernel patch commit
https://security.netapp.com/advisory/ntap-20190204-0002/
Patch

Details

CVE ID CVE-2018-14634

Severity High

CVSS score 7.8 / 10

CVSS version 3.0

Published 2018-09-25

Modified 2026-01-27

KEV Yes

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-14634?

CVE-2018-14634 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Integer Overflow flaw (CWE-190) . CVE-2018-14634 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.
What is the CVSS score for CVE-2018-14634?

CVE-2018-14634 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2018-14634?

No patch is currently available for CVE-2018-14634. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2018-14634 actively exploited?

Yes — CVE-2018-14634 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. It carries a CVSS score of 7.8 (High severity).
What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. View CWE-190 on MITRE CWE →