CVE-2020-14399 : Exploit Details and Defense Strategies

An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. This CVE has a disputed status.

Understanding CVE-2020-14399

This CVE involves a vulnerability in LibVNCServer before version 0.9.13, where byte-aligned data is accessed through uint32_t pointers in the rfbproto.c file of libvncclient.

What is CVE-2020-14399?

CVE-2020-14399 is a security vulnerability found in LibVNCServer before version 0.9.13, allowing unauthorized access to byte-aligned data through uint32_t pointers.

The Impact of CVE-2020-14399

The impact of this vulnerability is that byte-aligned data can be accessed through uint32_t pointers, potentially leading to unauthorized access or manipulation of data.

Technical Details of CVE-2020-14399

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in LibVNCServer before 0.9.13 allows byte-aligned data access through uint32_t pointers in libvncclient/rfbproto.c.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions affected: n/a

Exploitation Mechanism

The exploitation of this vulnerability involves accessing byte-aligned data through uint32_t pointers in the specified file.

Mitigation and Prevention

To address CVE-2020-14399, follow these mitigation steps:

Immediate Steps to Take

Update LibVNCServer to version 0.9.13 or later.
Monitor vendor security advisories for patches.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement network segmentation to limit exposure to potential attacks.

Patching and Updates

Ensure timely application of patches and updates provided by LibVNCServer to address this vulnerability.