USN-7973-1

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Source
https://ubuntu.com/security/notices/USN-7973-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7973-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-7973-1
Upstream
Related
Published
2026-01-23T04:53:55.344149Z
Modified
2026-01-30T02:37:11.499389Z
Summary
cjson vulnerabilities
Details

It was discovered that cJSON incorrectly handled parsing large numbers. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-26819)

It was discovered that cJSON may perform out-of-bounds read when processing specially crafted JSON files using parse_object. An attacker could possibly use this issue to expose sensitive information or crash the program. (CVE-2023-53154)

It was discovered that cJSON incorrectly validated array indices in JSON pointers, which could result in an out-of-bounds memory access. An attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. (CVE-2025-57052)

References

Affected packages

Ubuntu:Pro:20.04:LTS / cjson

Package

Name
cjson
Purl
pkg:deb/ubuntu/cjson@1.7.10-1.1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.10-1.1ubuntu0.1~esm1

Affected versions

1.*
1.7.10-1.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libcjson-dev",
            "binary_version": "1.7.10-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcjson1",
            "binary_version": "1.7.10-1.1ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-26819"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-53154"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-57052"
        }
    ],
    "ecosystem": "Ubuntu:Pro:20.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7973-1.json"

Ubuntu:22.04:LTS / cjson

Package

Name
cjson
Purl
pkg:deb/ubuntu/cjson@1.7.15-1ubuntu0.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.15-1ubuntu0.1

Affected versions

1.*
1.7.14-1
1.7.15-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libcjson-dev",
            "binary_version": "1.7.15-1ubuntu0.1"
        },
        {
            "binary_name": "libcjson1",
            "binary_version": "1.7.15-1ubuntu0.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-26819"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-53154"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-57052"
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7973-1.json"

Ubuntu:Pro:24.04:LTS / cjson

Package

Name
cjson
Purl
pkg:deb/ubuntu/cjson@1.7.17-1ubuntu0.1~esm3?arch=source&distro=esm-apps/noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.17-1ubuntu0.1~esm3

Affected versions

1.*
1.7.16-1
1.7.16-2
1.7.17-1
1.7.17-1ubuntu0.1~esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libcjson-dev",
            "binary_version": "1.7.17-1ubuntu0.1~esm3"
        },
        {
            "binary_name": "libcjson1",
            "binary_version": "1.7.17-1ubuntu0.1~esm3"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-26819"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-53154"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-57052"
        }
    ],
    "ecosystem": "Ubuntu:Pro:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7973-1.json"

Ubuntu:25.10 / cjson

Package

Name
cjson
Purl
pkg:deb/ubuntu/cjson@1.7.18-3.1ubuntu0.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.18-3.1ubuntu0.1

Affected versions

1.*
1.7.18-3
1.7.18-3.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libcjson-dev",
            "binary_version": "1.7.18-3.1ubuntu0.1"
        },
        {
            "binary_name": "libcjson1",
            "binary_version": "1.7.18-3.1ubuntu0.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-57052"
        }
    ],
    "ecosystem": "Ubuntu:25.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7973-1.json"