USN-5474-2

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    USN-5474-2

    Published: 23 Aug 2022Last Modified: 22 Apr 2026

    Summary: varnish regression

    Details: USN-5474-1 fixed vulnerabilities in Varnish Cache. Unfortunately the fix for CVE-2020-11653 was incomplete. This update fixes the problem. Original advisory details: It was discovered that Varnish Cache could have an assertion failure when a TLS termination proxy uses PROXY version 2. A remote attacker could possibly use this issue to restart the daemon and cause a performance loss. (CVE-2020-11653)

    References: https://ubuntu.com/security/notices/USN-5474-2, https://ubuntu.com/security/CVE-2020-11653

    Affected packages

    Package

    Name: varnish

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -6.2.1-2ubuntu0.2

    Affected versions

    6.1.1-1

    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
    USN-5474-2 | CVE-DB