ALSA-2023:6976

    Dashboard / Vulnerabilities / ALSA-2023:6976

    ALSA-2023:6976

    Published: 14 Nov 2023Last Modified: 4 Feb 2026

    Summary: Moderate: libfastjson security update

    Details: The libfastjson library provides essential JavaScript Object Notation (JSON) handling functions. The library enables users to construct JSON objects in C, output them as JSON-formatted strings, and convert JSON-formatted strings back to the C representation of JSON objects. Security Fix(es): * json-c, libfastjson: integer overflow and out-of-bounds write via a large JSON file (CVE-2020-12762) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

    References: https://access.redhat.com/errata/RHSA-2023:6976, https://access.redhat.com/security/cve/CVE-2020-12762, https://bugzilla.redhat.com/1835253, https://errata.almalinux.org/8/ALSA-2023-6976.html

    Affected packages

    Package

    Name: libfastjson

    Purl: pkg:rpm/almalinux/libfastjson

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.99.9-2.el8

    Affected versions

    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
    ALSA-2023:6976 | CVE-DB