UBUNTU-CVE-2021-20308

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    UBUNTU-CVE-2021-20308

    Published: 5 Apr 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-20308
    Aliases:
    USN-7189-1

    Summary:

    Details: Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181.

    References: https://ubuntu.com/security/CVE-2021-20308, https://github.com/michaelrsweet/htmldoc/issues/423, https://bugzilla.redhat.com/show_bug.cgi?id=1946289, https://www.cve.org/CVERecord?id=CVE-2021-20308, https://ubuntu.com/security/notices/USN-7189-1

    Affected packages

    Package

    Name: htmldoc

    Purl: pkg:deb/ubuntu/[email protected]+esm3?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.8.27-8ubuntu1+esm3

    Affected versions

    1.8.27-8ubuntu1
    1.8.27-8ubuntu1+esm1
    1.8.27-8ubuntu1+esm2

    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-2021-20308 | CVE-DB