UBUNTU-CVE-2018-0490

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    UBUNTU-CVE-2018-0490

    Published: 5 Mar 2018Last Modified: 8 Sept 2025
    Upstream:
    CVE-2018-0490

    Summary:

    Details: An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.

    References: https://ubuntu.com/security/CVE-2018-0490, https://trac.torproject.org/projects/tor/ticket/25074, https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915, https://www.cve.org/CVERecord?id=CVE-2018-0490

    Affected packages

    Package

    Name: tor

    Purl: pkg:deb/ubuntu/[email protected]~16.04.3?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.2.9.14-1ubuntu1~16.04.3

    Affected versions

    0.2.6.10-1ubuntu2
    0.2.7.6-1ubuntu1
    0.2.9.11-1ubuntu1~16.04.1
    0.2.9.14-1ubuntu1~16.04.1
    0.2.9.14-1ubuntu1~16.04.2

    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-2018-0490 | CVE-DB