CVE-2018-14634 : Exploit Details and Defense Strategies

A vulnerability in the create_elf_tables() function of the Linux kernel has been discovered, allowing privilege escalation through integer overflow. This CVE affects various versions of the Linux kernel.

Understanding CVE-2018-14634

This CVE involves a vulnerability in the Linux kernel that could be exploited for privilege escalation.

What is CVE-2018-14634?

The vulnerability in the create_elf_tables() function of the Linux kernel allows non-privileged users to elevate their privileges by exploiting an integer overflow issue.

The Impact of CVE-2018-14634

CVSS Score: 7.8 (High Severity)
Attack Vector: Local
Privileges Required: Low
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2018-14634

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability is related to an integer overflow in the create_elf_tables() function of the Linux kernel, enabling unauthorized privilege escalation.

Affected Systems and Versions

Affected Product: Kernel
Vendor: The Linux Foundation
Vulnerable Versions: 2.6.x, 3.10.x, 4.14.x

Exploitation Mechanism

By exploiting the integer overflow in the create_elf_tables() function, non-privileged users with access to SUID binaries or other privileged binaries can elevate their privileges on the system.

Mitigation and Prevention

Protecting systems from CVE-2018-14634 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches provided by the vendor promptly.
Monitor for any unauthorized privilege escalations.

Long-Term Security Practices

Regularly update the kernel to the latest secure versions.
Implement the principle of least privilege to limit potential damage from privilege escalation attempts.
Conduct regular security audits to identify and address vulnerabilities.

Patching and Updates

Refer to vendor advisories for specific patch details and instructions.