Vulnerability-Lookup

CNVD-2019-34376

Vulnerability from cnvd - Published: 2019-10-10

Title

wolfSSL缓冲区溢出漏洞（CNVD-2019-34376）

Description

wolfSSL（前称CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。 wolfSSL 4.1.0及之前版本中的wolfcrypt/src/asn.c文件的‘CheckCertSignature_ex’函数存在缓冲区溢出漏洞，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作，攻击者可利用该漏洞导致缓冲区溢出或堆溢出。

Severity

高

Patch Name

wolfSSL缓冲区溢出漏洞（CNVD-2019-34376）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/wolfSSL/wolfssl/issues/2459

Reference

https://github.com/wolfSSL/wolfssl/issues/2459 https://nvd.nist.gov/vuln/detail/CVE-2019-16748

Impacted products

Name
wolfSSL wolfSSL <=4.1.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-16748"
    }
  },
  "description": "wolfSSL\uff08\u524d\u79f0CyaSSL\uff09\u662f\u7f8e\u56fdwolfSSL\u516c\u53f8\u7684\u4e00\u4e2a\u9488\u5bf9\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u7684\u5c0f\u7684\u3001\u53ef\u79fb\u690d\u7684\u5d4c\u5165\u5f0fSSL\u7f16\u7a0b\u5e93\u3002\n\nwolfSSL 4.1.0\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684wolfcrypt/src/asn.c\u6587\u4ef6\u7684\u2018CheckCertSignature_ex\u2019\u51fd\u6570\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u3002",
  "discovererName": "flyroom",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/wolfSSL/wolfssl/issues/2459",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-34376",
  "openTime": "2019-10-10",
  "patchDescription": "wolfSSL\uff08\u524d\u79f0CyaSSL\uff09\u662f\u7f8e\u56fdwolfSSL\u516c\u53f8\u7684\u4e00\u4e2a\u9488\u5bf9\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u7684\u5c0f\u7684\u3001\u53ef\u79fb\u690d\u7684\u5d4c\u5165\u5f0fSSL\u7f16\u7a0b\u5e93\u3002\r\n\r\nwolfSSL 4.1.0\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684wolfcrypt/src/asn.c\u6587\u4ef6\u7684\u2018CheckCertSignature_ex\u2019\u51fd\u6570\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "wolfSSL\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2019-34376\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "wolfSSL wolfSSL \u003c=4.1.0"
  },
  "referenceLink": "https://github.com/wolfSSL/wolfssl/issues/2459\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-16748",
  "serverity": "\u9ad8",
  "submitTime": "2019-09-25",
  "title": "wolfSSL\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2019-34376\uff09"
}

CVE-2019-16748 (GCVE-0-2019-16748)

Vulnerability from cvelistv5 – Published: 2019-09-24 12:12 – Updated: 2024-08-05 01:24

Summary

In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer over-read in CheckCertSignature_ex in wolfcrypt/src/asn.c.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://github.com/wolfSSL/wolfssl/issues/2459

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T01:24:47.098Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/wolfSSL/wolfssl/issues/2459"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer over-read in CheckCertSignature_ex in wolfcrypt/src/asn.c."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-09-24T12:12:38",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/wolfSSL/wolfssl/issues/2459"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-16748",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer over-read in CheckCertSignature_ex in wolfcrypt/src/asn.c."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/wolfSSL/wolfssl/issues/2459",
              "refsource": "MISC",
              "url": "https://github.com/wolfSSL/wolfssl/issues/2459"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-16748",
    "datePublished": "2019-09-24T12:12:38",
    "dateReserved": "2019-09-24T00:00:00",
    "dateUpdated": "2024-08-05T01:24:47.098Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2019-34376

CVE-2019-16748 (GCVE-0-2019-16748)

Tags

Sightings

Nomenclature