USN-6500-2

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    USN-6500-2

    Published: 11 Dec 2023Last Modified: 25 Jun 2026

    Summary: squid3 vulnerabilities

    Details: USN-6500-1 fixed several vulnerabilities in Squid. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Original advisory details: Joshua Rogers discovered that Squid incorrectly handled the Gopher protocol. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Gopher support has been disabled in this update. (CVE-2023-46728) Joshua Rogers discovered that Squid incorrectly handled HTTP Digest Authentication. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2023-46847)

    References: https://ubuntu.com/security/notices/USN-6500-2, https://ubuntu.com/security/CVE-2023-46728, https://ubuntu.com/security/CVE-2023-46847

    Affected packages

    Package

    Name: squid3

    Purl: pkg:deb/ubuntu/squid3?arch=source&distro=esm-infra%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.5.12-1ubuntu7.16+esm2

    Affected versions

    3.3.8-1ubuntu16
    3.3.8-1ubuntu17

    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-6500-2 | CVE-DB