UBUNTU-CVE-2021-3677

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    UBUNTU-CVE-2021-3677

    Published: 12 Aug 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-3677
    Aliases:
    USN-5038-1

    Summary:

    Details: A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.

    References: https://ubuntu.com/security/CVE-2021-3677, https://ubuntu.com/security/notices/USN-5038-1, https://www.cve.org/CVERecord?id=CVE-2021-3677

    Affected packages

    Package

    Name: postgresql-12

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -12.8-0ubuntu0.20.04.1

    Affected versions

    12.0-1

    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-2021-3677 | CVE-DB