CVE-2021-27377 : Vulnerability Insights and Analysis
Learn about CVE-2021-27377 found in yottadb crate before version 1.2.0 for Rust, leading to a use-after-free scenario. Explore impacts, technical details, affected systems, and mitigation steps.
An issue was discovered in the yottadb crate before 1.2.0 for Rust. This vulnerability exists in the functions ydb_subscript_next_st and ydb_subscript_prev_st, leading to a use-after-free scenario.
Understanding CVE-2021-27377
This section dives into the details and impact of CVE-2021-27377.
What is CVE-2021-27377?
CVE-2021-27377 is a vulnerability found in the yottadb crate before version 1.2.0 for Rust. The issue arises from certain memory-allocation patterns in the functions ydb_subscript_next_st and ydb_subscript_prev_st, resulting in a use-after-free condition.
The Impact of CVE-2021-27377
The use-after-free vulnerability in ydb_subscript_next_st and ydb_subscript_prev_st could potentially be exploited by an attacker to execute arbitrary code or crash the application, posing a significant risk to the system's integrity and confidentiality.
Technical Details of CVE-2021-27377
Explore the technical aspects of CVE-2021-27377 to understand its nature and implications.
Vulnerability Description
The vulnerability in ydb_subscript_next_st and ydb_subscript_prev_st occurs due to improper memory handling, allowing an attacker to manipulate memory allocation and potentially execute malicious code.
Affected Systems and Versions
The issue affects yottadb crate versions prior to 1.2.0 for the Rust programming language.
Exploitation Mechanism
By leveraging the use-after-free condition in ydb_subscript_next_st and ydb_subscript_prev_st, threat actors could craft exploits to compromise the system's security and stability.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks associated with CVE-2021-27377 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to update the yottadb crate to version 1.2.0 or later to address the use-after-free vulnerability in ydb_subscript_next_st and ydb_subscript_prev_st.
Long-Term Security Practices
Implement secure coding practices and perform regular security audits to identify and remediate vulnerabilities in software components.
Patching and Updates
Frequent updates and patching of software components, including the yottadb crate, are essential to stay protected against emerging security threats.