CVE-2020-11693 : Security Advisory and Response

JetBrains YouTrack before 2020.1.659 was vulnerable to a Denial of Service (DoS) attack due to a flaw in handling malformed TIFF file attachments.

Understanding CVE-2020-11693

What is CVE-2020-11693?

CVE-2020-11693 is a vulnerability in JetBrains YouTrack that could allow an attacker to trigger a DoS attack by attaching a specially crafted TIFF file to an issue.

The Impact of CVE-2020-11693

The vulnerability could lead to service disruption and unavailability of JetBrains YouTrack instances, affecting productivity and potentially causing financial losses.

Technical Details of CVE-2020-11693

Vulnerability Description

The vulnerability in JetBrains YouTrack before version 2020.1.659 allows for a DoS attack through the attachment of a malformed TIFF file to an issue.

Affected Systems and Versions

Product: JetBrains YouTrack
Versions affected: Before 2020.1.659

Exploitation Mechanism

Attackers can exploit the vulnerability by attaching a specially crafted TIFF file to an issue, triggering the DoS condition.

Mitigation and Prevention

Immediate Steps to Take

Update JetBrains YouTrack to version 2020.1.659 or later to mitigate the vulnerability.
Avoid opening attachments from untrusted or unknown sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Conduct security assessments and audits to identify and address vulnerabilities proactively.

Patching and Updates

JetBrains released a fix in version 2020.1.659 to address the vulnerability. Ensure all instances are updated to the patched version to prevent exploitation.