CVE-2018-1084 : Exploit Details and Defense Strategies

A potential security weakness has been identified in corosync versions prior to 2.4.4. This vulnerability involves an integer overflow in the exec/totemcrypto.c module.

Understanding CVE-2018-1084

This CVE-2018-1084 vulnerability affects corosync version 2.4.4 and below, potentially leading to security risks.

What is CVE-2018-1084?

corosync before version 2.4.4 is vulnerable to an integer overflow in exec/totemcrypto.c.

The Impact of CVE-2018-1084

The CVSS score for this vulnerability is 7.5, indicating a high severity level with a significant impact on availability.

Technical Details of CVE-2018-1084

This section provides more in-depth technical insights into the CVE-2018-1084 vulnerability.

Vulnerability Description

The vulnerability involves an integer overflow in the exec/totemcrypto.c module of corosync versions prior to 2.4.4.

Affected Systems and Versions

Product: corosync
Vendor: Unspecified
Affected Version: corosync 2.4.4

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Availability Impact: High
Privileges Required: None
Scope: Unchanged
User Interaction: None
Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Mitigation and Prevention

Protecting systems from CVE-2018-1084 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update corosync to version 2.4.4 or later to mitigate the vulnerability.
Monitor security advisories from relevant vendors for patches and updates.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Refer to vendor-specific advisories for patching instructions and updates.