UBUNTU-CVE-2016-0762

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    UBUNTU-CVE-2016-0762

    Published: 28 Oct 2016Last Modified: 4 Feb 2026
    Upstream:
    CVE-2016-0762

    Summary:

    Details: The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.

    References: https://ubuntu.com/security/CVE-2016-0762, http://markmail.org/message/pzuk6hauzljnm4r7?q=list:org.apache.tomcat.announce/, https://ubuntu.com/security/notices/USN-3177-1, https://ubuntu.com/security/notices/USN-4557-1, https://www.cve.org/CVERecord?id=CVE-2016-0762

    Affected packages

    Package

    Name: tomcat6

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -6.0.39-1ubuntu0.1

    Affected versions

    6.0.37-1
    6.0.39-1

    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-2016-0762 | CVE-DB