CVE-2019-14875 : What You Need to Know

A vulnerability in the newlib libc library versions prior to 3.3.0 can lead to a null pointer dereference bug, impacting the __multiply function.

Understanding CVE-2019-14875

This CVE involves a lack of memory allocation validation in the newlib libc library, potentially resulting in a null pointer dereference bug.

What is CVE-2019-14875?

The vulnerability exists in the Balloc method used for allocating large integers within the newlib libc library, affecting versions before 3.3.0.

The Impact of CVE-2019-14875

The vulnerability can be exploited to trigger a null pointer dereference bug, potentially leading to denial of service or other impacts.

Technical Details of CVE-2019-14875

This section provides detailed technical information about the CVE.

Vulnerability Description

The issue arises from the lack of validation for successful memory allocation in the __multiply function of the newlib libc library.

Affected Systems and Versions

Product: newlib
Vendor: Red Hat
Versions affected: All newlib versions prior to 3.3.0

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Availability Impact: High

Mitigation and Prevention

Protect your systems from CVE-2019-14875 with these mitigation strategies.

Immediate Steps to Take

Apply patches provided by the vendor promptly.
Monitor security advisories for updates and apply them as soon as they are available.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and audits to identify and mitigate potential risks.

Patching and Updates

Red Hat has likely released patches to address this vulnerability. Ensure you apply the latest updates to mitigate the risk of exploitation.