UBUNTU-CVE-2020-25097

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    UBUNTU-CVE-2020-25097

    Published: 19 Mar 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-25097
    Aliases:
    USN-4895-1

    Summary:

    Details: An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.

    References: https://ubuntu.com/security/CVE-2020-25097, https://github.com/squid-cache/squid/security/advisories/GHSA-jvf6-h9gj-pmj6, https://ubuntu.com/security/notices/USN-4895-1, https://www.cve.org/CVERecord?id=CVE-2020-25097

    Affected packages

    Package

    Name: squid3

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.5.12-1ubuntu7.16

    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
    UBUNTU-CVE-2020-25097 | CVE-DB