cvelist/2020/5xxx/CVE-2020-5235.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-5235",
        "STATE": "PUBLIC",
        "TITLE": "Out-of-memory condition in Nanopb is potentially exploitable"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Nanopb",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 0.2.9.4"
                                        },
                                        {
                                            "version_value": ">= 0.3.0, < 0.3.9.5"
                                        },
                                        {
                                            "version_value": ">= 0.4.0, < 0.4.1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "nanopb"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "There is a potentially exploitable out of memory condition In Nanopb before 0.4.1, 0.3.9.5, and 0.2.9.4. When nanopb is compiled with PB_ENABLE_MALLOC, the message to be decoded contains a repeated string, bytes or message field and realloc() runs out of memory when expanding the array nanopb can end up calling `free()` on a pointer value that comes from uninitialized memory. Depending on platform this can result in a crash or further memory corruption, which may be exploitable in some cases. This problem is fixed in nanopb-0.4.1, nanopb-0.3.9.5, nanopb-0.2.9.4."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-125: Out-of-bounds Read"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/nanopb/nanopb/security/advisories/GHSA-gcx3-7m76-287p",
                "refsource": "CONFIRM",
                "url": "https://github.com/nanopb/nanopb/security/advisories/GHSA-gcx3-7m76-287p"
            },
            {
                "name": "https://github.com/nanopb/nanopb/commit/45582f1f97f49e2abfdba1463d1e1027682d9856",
                "refsource": "MISC",
                "url": "https://github.com/nanopb/nanopb/commit/45582f1f97f49e2abfdba1463d1e1027682d9856"
            },
            {
                "name": "https://github.com/nanopb/nanopb/commit/7b396821ddd06df8e39143f16e1dc0a4645b89a3",
                "refsource": "MISC",
                "url": "https://github.com/nanopb/nanopb/commit/7b396821ddd06df8e39143f16e1dc0a4645b89a3"
            },
            {
                "name": "https://github.com/nanopb/nanopb/commit/aa9d0d1ca78d6adec3adfeecf3a706c7f9df81f2",
                "refsource": "MISC",
                "url": "https://github.com/nanopb/nanopb/commit/aa9d0d1ca78d6adec3adfeecf3a706c7f9df81f2"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-gcx3-7m76-287p",
        "discovery": "UNKNOWN"
    }
}