CVE-2021-45701 Explained : Impact and Mitigation

An issue was discovered in the tremor-script crate before 0.11.6 for Rust. A patch operation may result in a use-after-free.

Understanding CVE-2021-45701

An issue in the tremor-script crate for Rust that could lead to a use-after-free vulnerability.

What is CVE-2021-45701?

This CVE refers to a specific vulnerability found in the tremor-script crate prior to version 0.11.6 for Rust. The vulnerability arises from a patch operation that could potentially trigger a use-after-free scenario.

The Impact of CVE-2021-45701

The use-after-free vulnerability could be exploited by attackers to manipulate memory and potentially execute arbitrary code, leading to a range of security risks.

Technical Details of CVE-2021-45701

Details regarding the vulnerability in the tremor-script crate for Rust.

Vulnerability Description

The issue stems from the inadequate handling of patch operations, allowing for a use-after-free situation to occur, presenting a significant security risk.

Affected Systems and Versions

Affected Systems: Not applicable
Affected Versions: Tremor-script crate versions prior to 0.11.6

Exploitation Mechanism

Exploiting this vulnerability involves triggering a patch operation, resulting in a use-after-free scenario, which can be utilized by threat actors for malicious purposes.

Mitigation and Prevention

Measures to address and prevent the CVE-2021-45701 vulnerability.

Immediate Steps to Take

Users should update to version 0.11.6 or newer of the tremor-script crate to mitigate the vulnerability.
Employ proper input validation and sanitization techniques to reduce the risk of exploitation.

Long-Term Security Practices

Regularly monitor for updates and security advisories related to the tremor-script crate.
Implement secure coding practices to prevent similar memory-related vulnerabilities.

Patching and Updates

Ensure timely application of patches and updates to the tremor-script crate to address security concerns.