UBUNTU-CVE-2019-12086

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    UBUNTU-CVE-2019-12086

    Published: 17 May 2019Last Modified: 4 Feb 2026
    Upstream:
    CVE-2019-12086
    Aliases:
    USN-4813-1

    Summary:

    Details: A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint, the service has the mysql-connector-java jar (8.0.14 or earlier) in the classpath, and an attacker can host a crafted MySQL server reachable by the victim, an attacker can send a crafted JSON message that allows them to read arbitrary local files on the server. This occurs because of missing com.mysql.cj.jdbc.admin.MiniAdmin validation.

    References: https://ubuntu.com/security/CVE-2019-12086, http://russiansecurity.expert/2016/04/20/mysql-connect-file-read/, https://github.com/FasterXML/jackson-databind/issues/2326, https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.9.9, https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062, https://ubuntu.com/security/notices/USN-4813-1, https://www.cve.org/CVERecord?id=CVE-2019-12086

    Affected packages

    Package

    Name: jackson-databind

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.2.2-1
    2.2.2-1ubuntu0.1~esm1

    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
    UBUNTU-CVE-2019-12086 | CVE-DB