USN-6629-1 fixed vulnerabilities in UltraJSON. This update provides the corresponding updates for Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that UltraJSON incorrectly handled certain input with a large amount of indentation. An attacker could possibly use this issue to crash the program, resulting in a denial of service. (CVE-2021-45958)
Jake Miller discovered that UltraJSON incorrectly decoded certain characters. An attacker could possibly use this issue to cause key confusion and overwrite values in dictionaries. (CVE-2022-31116)
It was discovered that UltraJSON incorrectly handled an error when reallocating a buffer for string decoding. An attacker could possibly use this issue to corrupt memory. (CVE-2022-31117)
{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1.35-4ubuntu0.1+esm1",
            "binary_name": "python3-ujson"
        }
    ]
}
          {
    "ecosystem": "Ubuntu:Pro:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2022-31116",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2022-31117",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}