{ "containers": { "cna": { "affected": [ { "product": "nanopb", "vendor": "nanopb", "versions": [ { "status": "affected", "version": ">= 0.3.2, <= 0.3.9.7" }, { "status": "affected", "version": ">= 0.4.0, <= 0.4.4" } ] } ], "descriptions": [ { "lang": "en", "value": "Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid `free()` or `realloc()` calls if the message type contains an `oneof` field, and the `oneof` directly contains both a pointer field and a non-pointer field. If the message data first contains the non-pointer field and then the pointer field, the data of the non-pointer field is incorrectly treated as if it was a pointer value. Such message data rarely occurs in normal messages, but it is a concern when untrusted data is parsed. This has been fixed in versions 0.3.9.8 and 0.4.5. See referenced GitHub Security Advisory for more information including workarounds." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-763", "description": "CWE-763: Release of Invalid Pointer or Reference", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-03-23T17:45:19", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/nanopb/nanopb/security/advisories/GHSA-7mv5-5mxh-qg88" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/nanopb/nanopb/issues/647" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/nanopb/nanopb/commit/e2f0ccf939d9f82931d085acb6df8e9a182a4261" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/nanopb/nanopb/blob/c9124132a604047d0ef97a09c0e99cd9bed2c818/CHANGELOG.txt#L1" } ], "source": { "advisory": "GHSA-7mv5-5mxh-qg88", "discovery": "UNKNOWN" }, "title": "Invalid free() call in Nanopb", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-21401", "STATE": "PUBLIC", "TITLE": "Invalid free() call in Nanopb" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "nanopb", "version": { "version_data": [ { "version_value": ">= 0.3.2, <= 0.3.9.7" }, { "version_value": ">= 0.4.0, <= 0.4.4" } ] } } ] }, "vendor_name": "nanopb" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid `free()` or `realloc()` calls if the message type contains an `oneof` field, and the `oneof` directly contains both a pointer field and a non-pointer field. If the message data first contains the non-pointer field and then the pointer field, the data of the non-pointer field is incorrectly treated as if it was a pointer value. Such message data rarely occurs in normal messages, but it is a concern when untrusted data is parsed. This has been fixed in versions 0.3.9.8 and 0.4.5. See referenced GitHub Security Advisory for more information including workarounds." } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-763: Release of Invalid Pointer or Reference" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/nanopb/nanopb/security/advisories/GHSA-7mv5-5mxh-qg88", "refsource": "CONFIRM", "url": "https://github.com/nanopb/nanopb/security/advisories/GHSA-7mv5-5mxh-qg88" }, { "name": "https://github.com/nanopb/nanopb/issues/647", "refsource": "MISC", "url": "https://github.com/nanopb/nanopb/issues/647" }, { "name": "https://github.com/nanopb/nanopb/commit/e2f0ccf939d9f82931d085acb6df8e9a182a4261", "refsource": "MISC", "url": "https://github.com/nanopb/nanopb/commit/e2f0ccf939d9f82931d085acb6df8e9a182a4261" }, { "name": "https://github.com/nanopb/nanopb/blob/c9124132a604047d0ef97a09c0e99cd9bed2c818/CHANGELOG.txt#L1", "refsource": "MISC", "url": "https://github.com/nanopb/nanopb/blob/c9124132a604047d0ef97a09c0e99cd9bed2c818/CHANGELOG.txt#L1" } ] }, "source": { "advisory": "GHSA-7mv5-5mxh-qg88", "discovery": "UNKNOWN" } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:09:16.087Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/nanopb/nanopb/security/advisories/GHSA-7mv5-5mxh-qg88" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/nanopb/nanopb/issues/647" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/nanopb/nanopb/commit/e2f0ccf939d9f82931d085acb6df8e9a182a4261" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/nanopb/nanopb/blob/c9124132a604047d0ef97a09c0e99cd9bed2c818/CHANGELOG.txt#L1" } ] } ] }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-21401", "datePublished": "2021-03-23T17:45:19", "dateReserved": "2020-12-22T00:00:00", "dateUpdated": "2024-08-03T18:09:16.087Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }