CVE-2022-35977 : Vulnerability Insights and Analysis

This article provides detailed information on CVE-2022-35977, which involves an integer overflow vulnerability in Redis that can lead to an out-of-memory (OOM) panic.

Understanding CVE-2022-35977

This section delves into the impact, technical details, and mitigation strategies related to the CVE.

What is CVE-2022-35977?

CVE-2022-35977 involves an integer overflow issue within Redis that can be triggered by authenticated users through specific commands, leading to an OOM panic.

The Impact of CVE-2022-35977

The vulnerability can allow malicious actors to exploit Redis into attempting to allocate extreme amounts of memory, resulting in denial of service (DoS) conditions.

Technical Details of CVE-2022-35977

This section outlines the specifics of the vulnerability affecting Redis.

Vulnerability Description

Authenticated users can exploit the integer overflow by using specific

SETRANGE

and

SORT(_RO)

commands, prompting Redis to allocate unfeasible memory amounts.

Affected Systems and Versions

Redis versions prior to 6.0.17, 6.2.9, and 7.0.8 are impacted by this vulnerability.

Exploitation Mechanism

Through specially crafted commands, attackers can trigger the integer overflow, leading to OOM panics within Redis.

Mitigation and Prevention

This section provides guidance on addressing the CVE-2022-35977 vulnerability.

Immediate Steps to Take

Users are strongly advised to update their Redis installations to versions 7.0.8, 6.2.9, or 6.0.17 to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing secure coding practices and regularly updating Redis installations are crucial for maintaining system security.

Patching and Updates

Regularly monitor and apply security patches from Redis to safeguard against known vulnerabilities.