CVE-2022-30973 : Security Advisory and Response
Discover the impact, technical details, and mitigation steps for CVE-2022-30973, a denial of service vulnerability in Apache Tika 1.28.2 affecting users of the StandardsExtractingContentHandler.
Apache Tika 1.28.2 release failed to apply the fix for CVE-2022-30126, leading to a denial of service vulnerability in the StandardsExtractingContentHandler. Learn about the impact, technical details, and mitigation steps.
Understanding CVE-2022-30973
This CVE details a vulnerability in Apache Tika that could result in a denial of service for users running the StandardsExtractingContentHandler.
What is CVE-2022-30973?
In Apache Tika 1.28.2, a regular expression in the StandardsText class could lead to a denial of service due to backtracking on a specially crafted file. This vulnerability affects users utilizing the StandardsExtractingContentHandler.
The Impact of CVE-2022-30973
The vulnerability in Apache Tika's StandardsText class can be exploited to cause a denial of service, impacting the availability of services for affected users.
Technical Details of CVE-2022-30973
The vulnerability lies in the StandardsText class used by the StandardsExtractingContentHandler in Apache Tika 1.28.2, allowing for denial of service attacks.
Vulnerability Description
A specially crafted file can trigger backtracking in the regular expression of the StandardsText class, leading to a denial of service situation.
Affected Systems and Versions
Apache Tika versions <= 1.28.2 are affected by this vulnerability, specifically users running the StandardsExtractingContentHandler.
Exploitation Mechanism
Attackers can exploit the flawed regular expression in Apache Tika by leveraging the backtracking behavior to carry out denial of service attacks.
Mitigation and Prevention
To mitigate the CVE-2022-30973 vulnerability, users are advised to follow certain steps.
Immediate Steps to Take
Avoid using the StandardsExtractingContentHandler in Apache Tika or upgrade to versions 1.28.3 or 2.4.0 to prevent exploitation of the vulnerability.
Long-Term Security Practices
Ensure timely updates and patches for Apache Tika to address known vulnerabilities and enhance overall security posture.
Patching and Updates
Regularly check for security advisories and updates from Apache Tika to remain protected from potential threats and vulnerabilities.