UBUNTU-CVE-2021-20213

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    UBUNTU-CVE-2021-20213

    Published: 3 Feb 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-20213
    Aliases:
    USN-4886-1

    Summary:

    Details: A flaw was found in Privoxy in versions before 3.0.29. Dereference of a NULL-pointer that could result in a crash if accept-intercepted-requests was enabled, Privoxy failed to get the request destination from the Host header and a memory allocation failed.

    References: https://ubuntu.com/security/CVE-2021-20213, https://www.openwall.com/lists/oss-security/2021/02/03/3, https://www.privoxy.org/gitweb/?p=privoxy.git;a=commit;h=7530132349, https://ubuntu.com/security/notices/USN-4886-1, https://www.cve.org/CVERecord?id=CVE-2021-20213

    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-2021-20213 | CVE-DB