UBUNTU-CVE-2021-1871

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-1871

    UBUNTU-CVE-2021-1871

    Published: 2 Apr 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-1871
    Aliases:
    USN-4939-1

    Summary:

    Details: A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..

    References: https://ubuntu.com/security/CVE-2021-1871, https://webkitgtk.org/security/WSA-2021-0003.html, https://ubuntu.com/security/notices/USN-4939-1, https://www.cve.org/CVERecord?id=CVE-2021-1871, https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Affected packages

    Package

    Name: qtwebkit-opensource-src

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-2ubuntu1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    5.4.2+dfsg-1ubuntu2.1

    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-2021-1871 | CVE-DB