CVE-2022-24070 : What You Need to Know
Learn about CVE-2022-24070, a memory corruption vulnerability in Apache Subversion mod_dav_svn affecting versions 1.10.0 to 1.14.1. Discover impact, affected systems, and mitigation steps.
Apache Subversion's mod_dav_svn is susceptible to memory corruption due to a flaw in the path-based authorization rules lookup process. This vulnerability affects Apache Subversion versions 1.10.0 to 1.14.1.
Understanding CVE-2022-20657
CVE-2022-24070 pertains to a vulnerability in Apache Subversion where servers using mod_dav_svn may encounter memory corruption.
What is CVE-2022-20657?
The vulnerability in Apache Subversion's mod_dav_svn occurs when servers attempt to access already freed memory while checking path-based authorization rules.
The Impact of CVE-2022-20657
This vulnerability could lead to memory corruption in servers running Apache Subversion versions 1.10.0 through 1.14.1. Servers not utilizing mod_dav_svn are not affected by this issue.
Technical Details of CVE-2022-20657
The vulnerability lies in Subversion's mod_dav_svn where memory corruption can occur during the path-based authorization rules retrieval.
Vulnerability Description
The flaw in mod_dav_svn allows servers to potentially use memory that has already been freed, resulting in memory corruption.
Affected Systems and Versions
Servers running Apache Subversion versions 1.10.0 to 1.14.1 that utilize mod_dav_svn are vulnerable to this memory corruption issue.
Exploitation Mechanism
Attackers could exploit this vulnerability by crafting malicious requests to trigger the memory corruption in servers running the affected versions.
Mitigation and Prevention
To address CVE-2022-24070, immediate steps need to be taken to secure Apache Subversion servers.
Immediate Steps to Take
Update Apache Subversion to a patched version beyond 1.14.1, or disable mod_dav_svn if not essential for server operations.
Long-Term Security Practices
Regularly monitor Apache Subversion security advisories and apply patches promptly to mitigate potential vulnerabilities.
Patching and Updates
Stay informed about security updates from Apache Software Foundation and promptly apply patches to protect against known vulnerabilities.