UBUNTU-CVE-2021-22570

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    UBUNTU-CVE-2021-22570

    Published: 26 Jan 2022Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-22570

    Summary:

    Details: Nullptr dereference when a null char is present in a proto symbol. The symbol is parsed incorrectly, leading to an unchecked call into the proto file's name during generation of the resulting error message. Since the symbol is incorrectly parsed, the file is nullptr. We recommend upgrading to version 3.15.0 or greater.

    References: https://ubuntu.com/security/CVE-2021-22570, https://github.com/protocolbuffers/protobuf/releases/tag/v3.15.0, https://ubuntu.com/security/notices/USN-5490-1, https://ubuntu.com/security/notices/USN-5945-1, https://www.cve.org/CVERecord?id=CVE-2021-22570

    Affected packages

    Package

    Name: protobuf

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.5.0-9ubuntu1+esm1

    Affected versions

    2.4.1-3ubuntu2
    2.4.1-3ubuntu3
    2.4.1-3ubuntu4

    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-2021-22570 | CVE-DB