UBUNTU-CVE-2021-20216

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    UBUNTU-CVE-2021-20216

    Published: 5 Feb 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-20216
    Aliases:
    USN-4886-1

    Summary:

    Details: A flaw was found in Privoxy in versions before 3.0.31. A memory leak that occurs when decompression fails unexpectedly may lead to a denial of service. The highest threat from this vulnerability is to system availability.

    References: https://ubuntu.com/security/CVE-2021-20216, https://www.openwall.com/lists/oss-security/2021/01/31/2, https://www.privoxy.org/gitweb/?p=privoxy.git;a=commit;h=f431d61740cc03c1c5f6b7f9c7a4a8d0bedd70dd, https://ubuntu.com/security/notices/USN-4886-1, https://www.cve.org/CVERecord?id=CVE-2021-20216

    Affected packages

    Package

    Name: privoxy

    Purl: pkg:deb/ubuntu/[email protected]+deb8u1ubuntu0.1~esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.0.21-7+deb8u1ubuntu0.1~esm1

    Affected versions

    3.0.21-1
    3.0.21-2
    3.0.21-7+deb8u1build0.14.04.1

    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
    UBUNTU-CVE-2021-20216 | CVE-DB