USN-5531-1

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    USN-5531-1

    Published: 26 Jul 2022Last Modified: 27 Apr 2026

    Summary: protobuf-c vulnerability

    Details: Pietro Borrello discovered that protobuf-c contained an invalid arithmetic shift. This vulnerability allowed attackers to cause a denial of service (system crash) via unspecified vectors (CVE-2022-33070). It was discovered that protobuf-c contained an unsigned integer overflow. This vulnerability allowed attackers to cause a denial of service (system crash) via unspecified vectors. Todd Miller discovered that protobuf-c contained a possible NULL dereference. This could cause a vulnerability that allowed attackers to cause a denial of service (system crash) via unspecified vectors.

    References: https://ubuntu.com/security/notices/USN-5531-1, https://ubuntu.com/security/CVE-2022-33070

    Affected packages

    Package

    Name: protobuf-c

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.3.3-1ubuntu0.1

    Affected versions

    1.3.1-1build1
    1.3.2-1
    1.3.3-1

    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
    USN-5531-1 | CVE-DB