UBUNTU-CVE-2018-8777

    Dashboard / Vulnerabilities / UBUNTU-CVE-2018-8777

    UBUNTU-CVE-2018-8777

    Published: 3 Apr 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-8777
    Aliases:
    USN-3685-1

    Summary:

    Details: In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker can pass a large HTTP request with a crafted header to WEBrick server or a crafted body to WEBrick server/handler and cause a denial of service (memory consumption).

    References: https://ubuntu.com/security/CVE-2018-8777, https://www.ruby-lang.org/en/news/2018/03/28/large-request-dos-in-webrick-cve-2018-8777/, https://ubuntu.com/security/notices/USN-3685-1, https://www.cve.org/CVERecord?id=CVE-2018-8777

    Affected packages

    Package

    Name: ruby1.9.1

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.9.3.484-2ubuntu1.12

    Affected versions

    1.9.3.194-8.1ubuntu2
    1.9.3.448-1ubuntu1
    1.9.3.448-1ubuntu2
    1.9.3.484-1ubuntu1
    1.9.3.484-1ubuntu2
    1.9.3.484-2ubuntu1
    1.9.3.484-2ubuntu1.1
    1.9.3.484-2ubuntu1.2
    1.9.3.484-2ubuntu1.3
    1.9.3.484-2ubuntu1.5
    1.9.3.484-2ubuntu1.6
    1.9.3.484-2ubuntu1.7
    1.9.3.484-2ubuntu1.8
    1.9.3.484-2ubuntu1.10
    1.9.3.484-2ubuntu1.11

    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