CVE-2020-35858 : Security Advisory and Response

An issue was discovered in the prost crate before 0.6.1 for Rust, leading to stack consumption and potential denial of service or remote code execution.

Understanding CVE-2020-35858

This CVE involves a vulnerability in the prost crate for Rust that can result in denial of service or remote code execution.

What is CVE-2020-35858?

The prost crate before version 0.6.1 for Rust is susceptible to stack consumption through a specially crafted message, potentially enabling denial of service attacks on x86 systems or remote code execution on ARM architectures.

The Impact of CVE-2020-35858

The vulnerability could allow attackers to disrupt services or execute arbitrary code remotely, posing a significant risk to affected systems.

Technical Details of CVE-2020-35858

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

Vulnerability Description

The issue in the prost crate allows for stack consumption via a crafted message, creating a pathway for denial of service attacks or remote code execution.

Affected Systems and Versions

Affected Systems: Not specified
Affected Versions: prost crate versions before 0.6.1

Exploitation Mechanism

The vulnerability can be exploited by sending a specially crafted message to trigger excessive stack consumption, leading to the potential for denial of service or remote code execution.

Mitigation and Prevention

Protecting systems from CVE-2020-35858 requires immediate action and long-term security measures.

Immediate Steps to Take

Update the prost crate to version 0.6.1 or later to mitigate the vulnerability.
Monitor for any unusual stack consumption patterns that could indicate exploitation.

Long-Term Security Practices

Regularly update software components to patch known vulnerabilities.
Implement secure coding practices to prevent similar issues in the future.

Patching and Updates

Apply patches and updates promptly to ensure that systems are protected against known vulnerabilities.