USN-4477-1

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    USN-4477-1

    Published: 27 Aug 2020Last Modified: 10 Feb 2026

    Summary: squid vulnerabilities

    Details: Amit Klein discovered that Squid incorrectly validated certain data. A remote attacker could possibly use this issue to perform an HTTP request smuggling attack, resulting in cache poisoning. (CVE-2020-15810) Régis Leroy discovered that Squid incorrectly validated certain data. A remote attacker could possibly use this issue to perform an HTTP request splitting attack, resulting in cache poisoning. (CVE-2020-15811) Lubos Uhliarik discovered that Squid incorrectly handled certain Cache Digest response messages sent by trusted peers. A remote attacker could possibly use this issue to cause Squid to consume resources, resulting in a denial of service. (CVE-2020-24606)

    References: https://ubuntu.com/security/notices/USN-4477-1, https://ubuntu.com/security/CVE-2020-15810, https://ubuntu.com/security/CVE-2020-15811, https://ubuntu.com/security/CVE-2020-24606

    Affected packages

    Package

    Name: squid

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.10-1ubuntu1.2

    Affected versions

    4.8-1ubuntu2

    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-4477-1 | CVE-DB