UBUNTU-CVE-2021-46784

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    UBUNTU-CVE-2021-46784

    Published: 31 Dec 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-46784
    Aliases:
    USN-5491-1

    Summary:

    Details: In Squid 3.x through 3.5.28, 4.x through 4.17, and 5.x before 5.6, due to improper buffer management, a Denial of Service can occur when processing long Gopher server responses.

    References: https://ubuntu.com/security/CVE-2021-46784, https://github.com/squid-cache/squid/security/advisories/GHSA-f5cp-6rh3-284w, https://ubuntu.com/security/notices/USN-5491-1, https://www.cve.org/CVERecord?id=CVE-2021-46784

    Affected packages

    Package

    Name: squid3

    Purl: pkg:deb/ubuntu/[email protected]+esm6?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    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-2021-46784 | CVE-DB