GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2018-0497 (GCVE-0-2018-0497)

Vulnerability from cvelistv5 – Published: 2018-07-28 17:00 – Updated: 2024-08-05 03:28
VLAI
Summary
ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169.
Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • plaintext recovery
Assigner
References
URL Tags
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://www.debian.org/security/2018/dsa-4296 vendor-advisoryx_refsource_DEBIAN
https://tls.mbed.org/tech-updates/security-adviso… x_refsource_CONFIRM
https://usn.ubuntu.com/4267-1/ vendor-advisoryx_refsource_UBUNTU
Impacted products
Vendor Product Version CPE status
n/a ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 Affected: ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14
Date Public
2018-07-28 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:28:11.012Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[debian-lts-announce] 20180925 [SECURITY] [DLA 1518-1] polarssl security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html"
          },
          {
            "name": "DSA-4296",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4296"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02"
          },
          {
            "name": "USN-4267-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4267-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14"
            }
          ]
        }
      ],
      "datePublic": "2018-07-28T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "plaintext recovery",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-02-10T15:06:12.000Z",
        "orgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
        "shortName": "debian"
      },
      "references": [
        {
          "name": "[debian-lts-announce] 20180925 [SECURITY] [DLA 1518-1] polarssl security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html"
        },
        {
          "name": "DSA-4296",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4296"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02"
        },
        {
          "name": "USN-4267-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4267-1/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@debian.org",
          "ID": "CVE-2018-0497",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "plaintext recovery"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[debian-lts-announce] 20180925 [SECURITY] [DLA 1518-1] polarssl security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html"
            },
            {
              "name": "DSA-4296",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2018/dsa-4296"
            },
            {
              "name": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02",
              "refsource": "CONFIRM",
              "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02"
            },
            {
              "name": "USN-4267-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4267-1/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
    "assignerShortName": "debian",
    "cveId": "CVE-2018-0497",
    "datePublished": "2018-07-28T17:00:00.000Z",
    "dateReserved": "2017-11-27T00:00:00.000Z",
    "dateUpdated": "2024-08-05T03:28:11.012Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2018-0497",
      "date": "2026-09-18",
      "epss": "0.02674",
      "percentile": "0.85109"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "71452E8B-F845-4575-8D58-7D6FE48759B8",
                  "versionEndExcluding": "2.1.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "971334EF-0D28-4569-86F6-F69A22F01E0A",
                  "versionEndExcluding": "2.7.5",
                  "versionStartIncluding": "2.2.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "4CFF4D8F-4789-4E5E-B741-C511FABFD5A4",
                  "versionEndExcluding": "2.12.0",
                  "versionStartIncluding": "2.8.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169."
        },
        {
          "lang": "es",
          "value": "ARM mbed TLS en versiones anteriores a la 2.12.0, en versiones anteriores a la 2.7.5 y en versiones anteriores a la 2.1.14 permite a los atacantes remotos lograr una recuperaci\u00f3n parcial de texto plano (para un ciphersuite basado en CBC) mediante un ataque de canal lateral basado en tiempo. Esta vulnerabilidad existe debido a una soluci\u00f3n incorrecta (con un c\u00e1lculo SHA-384 incorrecto) para CVE-2013-0169."
        }
      ],
      "id": "CVE-2018-0497",
      "lastModified": "2024-11-21T03:38:21.440",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "MEDIUM",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "NONE",
              "baseScore": 4.3,
              "confidentialityImpact": "PARTIAL",
              "integrityImpact": "NONE",
              "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
              "version": "2.0"
            },
            "exploitabilityScore": 8.6,
            "impactScore": 2.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV30": [
          {
            "cvssData": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.0"
            },
            "exploitabilityScore": 2.2,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2018-07-28T17:29:00.240",
      "references": [
        {
          "source": "security@debian.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html"
        },
        {
          "source": "security@debian.org",
          "tags": [
            "Mitigation",
            "Third Party Advisory"
          ],
          "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02"
        },
        {
          "source": "security@debian.org",
          "url": "https://usn.ubuntu.com/4267-1/"
        },
        {
          "source": "security@debian.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4296"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mitigation",
            "Third Party Advisory"
          ],
          "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://usn.ubuntu.com/4267-1/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4296"
        }
      ],
      "sourceIdentifier": "security@debian.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "NVD-CWE-noinfo"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "71452E8B-F845-4575-8D58-7D6FE48759B8",
                    "versionEndExcluding": "2.1.14",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "971334EF-0D28-4569-86F6-F69A22F01E0A",
                    "versionEndExcluding": "2.7.5",
                    "versionStartIncluding": "2.2.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4CFF4D8F-4789-4E5E-B741-C511FABFD5A4",
                    "versionEndExcluding": "2.12.0",
                    "versionStartIncluding": "2.8.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169."
          },
          {
            "lang": "es",
            "value": "ARM mbed TLS en versiones anteriores a la 2.12.0, en versiones anteriores a la 2.7.5 y en versiones anteriores a la 2.1.14 permite a los atacantes remotos lograr una recuperaci\u00f3n parcial de texto plano (para un ciphersuite basado en CBC) mediante un ataque de canal lateral basado en tiempo. Esta vulnerabilidad existe debido a una soluci\u00f3n incorrecta (con un c\u00e1lculo SHA-384 incorrecto) para CVE-2013-0169."
          }
        ],
        "id": "CVE-2018-0497",
        "lastModified": "2024-11-21T03:38:21.440",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.0"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2018-07-28T17:29:00.240",
        "references": [
          {
            "source": "security@debian.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html"
          },
          {
            "source": "security@debian.org",
            "tags": [
              "Mitigation",
              "Third Party Advisory"
            ],
            "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02"
          },
          {
            "source": "security@debian.org",
            "url": "https://usn.ubuntu.com/4267-1/"
          },
          {
            "source": "security@debian.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4296"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mitigation",
              "Third Party Advisory"
            ],
            "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://usn.ubuntu.com/4267-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4296"
          }
        ],
        "sourceIdentifier": "security@debian.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-11-21T16:09:06+00:00",
      "cve": "CVE-2018-0497",
      "id": "CVE-2018-0497",
      "initial_release_date": "2018-07-30T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "mbedtls: Two critical flaws fixed in latest release",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-0497.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-05-15T02:16:58Z",
      "cve": "CVE-2018-0497",
      "id": "CVE-2018-0497",
      "initial_release_date": "2023-02-15T04:34:49Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2018-0497",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-0497.json",
      "version": "5"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.


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.