CVE-2018-20164
5.3 · MEDIUMOverview
CVE-2018-20164 is a medium-severity vulnerability affecting uaparser user_agent_parser-core. It was published on February 13, 2019 and has a CVSS 3.0 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An issue was discovered in regex.yaml (aka regexes.yaml) in UA-Parser UAP-Core before 0.6.0. A Regular Expression Denial of Service (ReDoS) issue allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to a value containing a long digit string. (The UAP-Core project contains the vulnerability, propagating to all implementations.)
Remediation
Check the references section for vendor advisories and patches from uaparser. Update user_agent_parser-core to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| uaparser | user_agent_parser-core | >= 0, < 0.6.0 | Affected |
References
Frequently Asked Questions
What is CVE-2018-20164?
CVE-2018-20164 is a medium-severity vulnerability affecting uaparser user_agent_parser-core. It was published on February 13, 2019 and has a CVSS 3.0 base score of 5.3 (MEDIUM).
How severe is CVE-2018-20164?
This vulnerability has a CVSS 3.0 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-20164?
Check the references section for vendor advisories and patches from uaparser. Update user_agent_parser-core to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-20164?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-20164 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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