gsd-2020-16150
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.
Aliases
Aliases
CVE-2020-16150


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-16150",
    "description": "A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.",
    "id": "GSD-2020-16150",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-16150.html",
      "https://advisories.mageia.org/CVE-2020-16150.html",
      "https://security.archlinux.org/CVE-2020-16150"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-16150"
      ],
      "details": "A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.",
      "id": "GSD-2020-16150",
      "modified": "2023-12-13T01:21:46.124452Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-16150",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "?",
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
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            "lang": "eng",
            "value": "A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://tls.mbed.org/tech-updates/security-advisories",
            "refsource": "MISC",
            "url": "https://tls.mbed.org/tech-updates/security-advisories"
          },
          {
            "name": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html",
            "refsource": "MISC",
            "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"
          },
          {
            "name": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1",
            "refsource": "MISC",
            "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1"
          },
          {
            "name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/",
            "refsource": "MISC",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/"
          },
          {
            "name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRPBHCQKZXHVKOP5O5EWE7P76AWGUXQJ/",
            "refsource": "MISC",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRPBHCQKZXHVKOP5O5EWE7P76AWGUXQJ/"
          },
          {
            "name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC/",
            "refsource": "MISC",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC/"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c2.7.17||\u003e=2.8.0 \u003c2.16.8||\u003e=2.17.0 \u003c2.24.0",
          "affected_versions": "All versions before 2.7.17, all versions starting from 2.8.0 before 2.16.8, all versions starting from 2.17.0 before 2.24.0",
          "cvss_v2": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-203",
            "CWE-937"
          ],
          "date": "2020-09-25",
          "description": "A Lucky timing side channel in `mbedtls_ssl_decrypt_buf` in `library/ssl_msg.c` in Trusted Firmware Mbed TLS allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.",
          "fixed_versions": [],
          "identifier": "CVE-2020-16150",
          "identifiers": [
            "CVE-2020-16150"
          ],
          "not_impacted": "",
          "package_slug": "conan/mbedtls",
          "pubdate": "2020-09-02",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Information Exposure Through Discrepancy",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-16150",
            "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1"
          ],
          "uuid": "04134238-412e-425b-a421-11148ef8f7bf"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.7.17",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.16.8",
                "versionStartIncluding": "2.8.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.24.0",
                "versionStartIncluding": "2.17.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-16150"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-203"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1"
            },
            {
              "name": "https://tls.mbed.org/tech-updates/security-advisories",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://tls.mbed.org/tech-updates/security-advisories"
            },
            {
              "name": "[debian-lts-announce] 20221225 [SECURITY] [DLA 3249-1] mbedtls security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"
            },
            {
              "name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/",
              "refsource": "MISC",
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              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/"
            },
            {
              "name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRPBHCQKZXHVKOP5O5EWE7P76AWGUXQJ/",
              "refsource": "MISC",
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              ],
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            },
            {
              "name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC/",
              "refsource": "MISC",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.1,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-02-27T18:03Z",
      "publishedDate": "2020-09-02T16:15Z"
    }
  }
}


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