UBUNTU-CVE-2021-20276

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    UBUNTU-CVE-2021-20276

    Published: 9 Mar 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-20276
    Aliases:
    USN-4886-1

    Summary:

    Details: A flaw was found in privoxy before 3.0.32. Invalid memory access with an invalid pattern passed to pcre_compile() may lead to denial of service.

    References: https://ubuntu.com/security/CVE-2021-20276, https://www.openwall.com/lists/oss-security/2021/02/28/1, https://www.privoxy.org/gitweb/?p=privoxy.git;a=commit;h=28512e5b62457f0ff6f2d72e3e5c9226b9e0203d, https://ubuntu.com/security/notices/USN-4886-1, https://www.cve.org/CVERecord?id=CVE-2021-20276

    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-2021-20276 | CVE-DB