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    CVE-2018-20164

    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.)

    Published:Feb 13, 2019
    Last Modified:Nov 21, 2024
    EPS:Feb 13, 2019
    EPSS Score:0.01024
    CVSS Score:5.3

    Affected Products

    Vendor
    Uaparser
    Product
    User Agent Parser-core

    Exploits

    https://www.x41-dsec.de/lab/advisories/x41-2018-009-uaparser/https://www.x41-dsec.de/lab/advisories/x41-2018-009-uaparser/

    Common Weakness Enumeration

    CWE-185 Incorrect Regular Expression

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High