Vulnerability-Lookup

CVE-2020-36177 (GCVE-0-2020-36177)

Vulnerability from cvelistv5 – Published: 2021-01-06 15:54 – Updated: 2024-08-04 17:23

Summary

RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

Assigner

mitre mitre root Scorecard

References

5 references

URL	Tags
https://github.com/wolfSSL/wolfssl/commit/63bf5dc…	x_refsource_MISC
https://github.com/wolfSSL/wolfssl/pull/3426	x_refsource_MISC
https://github.com/wolfSSL/wolfssl/commit/fb2288c…	x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
https://github.com/wolfSSL/wolfssl/releases/tag/v…	x_refsource_MISC

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}

CNVD-2021-04411

Vulnerability from cnvd - Published: 2021-01-20

Title

wolfSSL越界写入漏洞

Description

wolfSSL是一个旨在供嵌入式系统开发人员使用的小型、可移植、嵌入式SSL/TLS库。 wolfSSL 4.6.0之前版本中的wolfcrypt/src/rsa.c中的RsaPad_PSS存在越界写入漏洞。目前没有详细的漏洞细节提供。

Severity

高

Patch Name

wolfSSL越界写入漏洞的补丁

Patch Description

wolfSSL是一个旨在供嵌入式系统开发人员使用的小型、可移植、嵌入式SSL/TLS库。 wolfSSL 4.6.0之前版本中的wolfcrypt/src/rsa.c中的RsaPad_PSS存在越界写入漏洞。目前没有详细的漏洞细节提供。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

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/releases/tag/v4.6.0-stable

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-36177

Impacted products

Name
wolfSSL wolfSSL <4.6.0

Show details on source website

JSON

To clipboard

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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-04411",
  "openTime": "2021-01-20",
  "patchDescription": "wolfSSL\u662f\u4e00\u4e2a\u65e8\u5728\u4f9b\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u7684\u5c0f\u578b\u3001\u53ef\u79fb\u690d\u3001\u5d4c\u5165\u5f0fSSL/TLS\u5e93\u3002\r\n\r\nwolfSSL 4.6.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684wolfcrypt/src/rsa.c\u4e2d\u7684RsaPad_PSS\u5b58\u5728\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "wolfSSL wolfSSL \u003c4.6.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-36177",
  "serverity": "\u9ad8",
  "submitTime": "2021-01-07",
  "title": "wolfSSL\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e"
}

FKIE_CVE-2020-36177

Vulnerability from fkie_nvd - Published: 2021-01-06 16:15 - Updated: 2026-06-17 03:14

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.

References

URL	Tags
cve@mitre.org	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26567	Exploit, Mailing List, Third Party Advisory
cve@mitre.org	https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7	Patch, Third Party Advisory
cve@mitre.org	https://github.com/wolfSSL/wolfssl/commit/fb2288c46dd4c864b78f00a47a364b96a09a5c0f	Patch, Third Party Advisory
cve@mitre.org	https://github.com/wolfSSL/wolfssl/pull/3426	Patch, Third Party Advisory
cve@mitre.org	https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26567	Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/wolfSSL/wolfssl/commit/fb2288c46dd4c864b78f00a47a364b96a09a5c0f	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/wolfSSL/wolfssl/pull/3426	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable	Third Party Advisory

Impacted products

	Vendor	Product	Version
	wolfssl	wolfssl	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A0CEE85D-5A48-4975-A1FA-5DB3FE6EB6E5",
              "versionEndExcluding": "4.6.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n RsaPad_PSS en el archivo wolfcrypt/src/rsa.c en wolfSSL versiones anteriores a 4.6.0, presenta una escritura fuera de l\u00edmites para determinadas relaciones entre el tama\u00f1o de la clave y el tama\u00f1o del resumen"
    }
  ],
  "id": "CVE-2020-36177",
  "lastModified": "2026-06-17T03:14:54.480",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 10.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-01-06T16:15:12.440",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26567"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/wolfSSL/wolfssl/commit/fb2288c46dd4c864b78f00a47a364b96a09a5c0f"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/wolfSSL/wolfssl/pull/3426"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26567"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/wolfSSL/wolfssl/commit/fb2288c46dd4c864b78f00a47a364b96a09a5c0f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/wolfSSL/wolfssl/pull/3426"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-68GC-RMHH-C4GG

Vulnerability from github – Published: 2022-05-24 17:38 – Updated: 2022-05-24 17:38

Details

RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2020-36177"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-01-06T16:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.",
  "id": "GHSA-68gc-rmhh-c4gg",
  "modified": "2022-05-24T17:38:06Z",
  "published": "2022-05-24T17:38:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36177"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/pull/3426"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/commit/fb2288c46dd4c864b78f00a47a364b96a09a5c0f"
    },
    {
      "type": "WEB",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26567"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GSD-2020-36177

Vulnerability from gsd - Updated: 2023-12-13 01:21

Details

RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.

Aliases

CVE-2020-36177

Aliases

CVE-2020-36177

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2020-36177",
    "description": "RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.",
    "id": "GSD-2020-36177"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-36177"
      ],
      "details": "RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.",
      "id": "GSD-2020-36177",
      "modified": "2023-12-13T01:21:56.112371Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-36177",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
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      "references": {
        "reference_data": [
          {
            "name": "https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7",
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            "url": "https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7"
          },
          {
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          },
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          },
          {
            "name": "https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable",
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          }
        ]
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c4.6.0",
          "affected_versions": "All versions before 4.6.0",
          "cvss_v2": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-787",
            "CWE-937"
          ],
          "date": "2021-01-12",
          "description": "RsaPad_PSS in `wolfcrypt/src/rsa.c` in wolfSSL has an out-of-bounds write for certain relationships between key size and digest size.",
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          ],
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            "CVE-2020-36177"
          ],
          "not_impacted": "All versions starting from 4.6.0",
          "package_slug": "conan/wolfssl",
          "pubdate": "2021-01-06",
          "solution": "Upgrade to version 4.6.0 or above",
          "title": "Out-of-bounds Write",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-36177"
          ],
          "uuid": "43901f7c-0368-4a4a-be70-ffcf17047cd2"
        }
      ]
    },
    "nvd.nist.gov": {
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              {
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                "cpe_name": [],
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                "vulnerable": true
              }
            ],
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          }
        ]
      },
      "cve": {
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          ]
        },
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              "refsource": "MISC",
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                "Patch",
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              ],
              "url": "https://github.com/wolfSSL/wolfssl/pull/3426"
            },
            {
              "name": "https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable"
            },
            {
              "name": "https://github.com/wolfSSL/wolfssl/commit/fb2288c46dd4c864b78f00a47a364b96a09a5c0f",
              "refsource": "MISC",
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                "Patch",
                "Third Party Advisory"
              ],
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            },
            {
              "name": "https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7",
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                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7"
            },
            {
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              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26567"
            }
          ]
        }
      },
      "impact": {
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            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 10.0,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
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          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-01-12T14:39Z",
      "publishedDate": "2021-01-06T16:15Z"
    }
  }
}

ICSA-23-131-14

Vulnerability from csaf_cisa - Published: 2023-05-11 22:14 - Updated: 2023-05-11 22:14

Summary

Rockwell Automation PanelView 800

Scope

2 vulnerabilities in this advisory, including CVE-2020-36177.

CVE-2020-36177

9.8 (Critical)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Known affected: 3 products

https://compatibility.rockwellautomation.com/Pages/MultiPro… https://manuals.plus/m/034dd41130c94a4265d75b89b1ae8c6cca62… https://pdf4pro.com/view/configure-system-security-features…

Open the full advisory

UBUNTU-CVE-2020-36177 (CVE-2020-36177)

Vulnerability from osv_ubuntu – Published: 2021-01-06 16:15 – Updated: 2026-05-20 14:52 – Source website

Details

RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.

Severity

9.8 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2020-36177	REPORT
	https://bugs.chromium.org/p/oss-fuzz/issues/detai…	REPORT
	https://github.com/wolfSSL/wolfssl/commit/63bf5dc…	REPORT
	https://github.com/wolfSSL/wolfssl/commit/fb2288c…	REPORT
	https://github.com/wolfSSL/wolfssl/pull/3426	REPORT
	https://github.com/wolfSSL/wolfssl/releases/tag/v…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2020-36177	REPORT

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{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcyassl5",
            "binary_version": "3.4.8+dfsg-1"
          },
          {
            "binary_name": "libwolfssl0",
            "binary_version": "3.4.8+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "wolfssl",
        "purl": "pkg:deb/ubuntu/wolfssl@3.4.8+dfsg-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.8+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libwolfssl15",
            "binary_version": "3.13.0+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "wolfssl",
        "purl": "pkg:deb/ubuntu/wolfssl@3.13.0+dfsg-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.10.2+dfsg-2",
        "3.12.0+dfsg-1",
        "3.12.2+dfsg-1",
        "3.13.0+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libwolfssl24",
            "binary_version": "4.3.0+dfsg-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "wolfssl",
        "purl": "pkg:deb/ubuntu/wolfssl@4.3.0+dfsg-2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.1.0+dfsg-2",
        "4.2.0+dfsg-1",
        "4.2.0+dfsg-2",
        "4.2.0+dfsg-3",
        "4.3.0+dfsg-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libwolfssl32",
            "binary_version": "5.2.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "wolfssl",
        "purl": "pkg:deb/ubuntu/wolfssl@5.2.0-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.6.0-3",
        "5.0.0-1",
        "5.1.1-1",
        "5.2.0-1",
        "5.2.0-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libwolfssl42t64",
            "binary_version": "5.6.6-1.3build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "wolfssl",
        "purl": "pkg:deb/ubuntu/wolfssl@5.6.6-1.3build1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.5.4-2",
        "5.5.4-2.1",
        "5.6.4-2",
        "5.6.6-1.2",
        "5.6.6-1.3",
        "5.6.6-1.3build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libwolfssl42t64",
            "binary_version": "5.7.2-0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "wolfssl",
        "purl": "pkg:deb/ubuntu/wolfssl@5.7.2-0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.7.2-0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libwolfssl44",
            "binary_version": "5.9.1-0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "wolfssl",
        "purl": "pkg:deb/ubuntu/wolfssl@5.9.1-0.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.7.2-0.1",
        "5.8.2-1.2",
        "5.8.4-1",
        "5.9.1-0.1"
      ]
    }
  ],
  "aliases": [],
  "details": "RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.",
  "id": "UBUNTU-CVE-2020-36177",
  "modified": "2026-05-20T14:52:39Z",
  "published": "2021-01-06T16:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-36177"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26567"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/wolfSSL/wolfssl/commit/fb2288c46dd4c864b78f00a47a364b96a09a5c0f"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/wolfSSL/wolfssl/pull/3426"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-36177"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "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"
    }
  ],
  "upstream": [
    "CVE-2020-36177"
  ]
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2020-36177 (GCVE-0-2020-36177)

CNVD-2021-04411

FKIE_CVE-2020-36177

GHSA-68GC-RMHH-C4GG

GSD-2020-36177

ICSA-23-131-14

UBUNTU-CVE-2020-36177 (CVE-2020-36177)

Tags

Sightings

Nomenclature

Related by attack behaviour