CVE-2018-14634 vulnerability in NetApp and Other Products
Published on September 25, 2018

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.

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Known Exploited Vulnerability

This Linux Kernel Integer Overflow Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. 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.

The following remediation steps are recommended / required by February 16, 2026: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weakness Type

Integer Overflow or Wraparound

The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. An integer overflow or wraparound occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may wrap to become a very small or negative number. While this may be intended behavior in circumstances that rely on wrapping, it can have security consequences if the wrap is unexpected. This is especially the case if the integer overflow can be triggered using user-supplied inputs. This becomes security-critical when the result is used to control looping, make a security decision, or determine the offset or size in behaviors such as memory allocation, copying, concatenation, etc.

Products Associated with CVE-2018-14634

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2018-14634 are published in these products:

NetApp Active Iq Performance Analytics Services

Canonical Ubuntu Linux

Linux Kernel

Red Hat Enterprise Linux Desktop

Red Hat Enterprise Linux Server

Red Hat Enterprise Linux Server Aus

Red Hat Enterprise Linux Server Eus

Red Hat Enterprise Linux Server Tus

Red Hat Enterprise Linux Workstation

Affected Versions

The Linux Foundation kernel Version 2.6.x, 3.10.x, 4.14.x is affected by CVE-2018-14634

Exploit Probability

EPSS

21.50%

Percentile

95.59%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.