Security advisory

{
  "id": "7381fa491f48f09bea15817f5fc95da05bc0af3a0f22f44c41c7f8f6f912475a",
  "url": "https://osv.dev/vulnerability/CVE-2018-0487",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-0487",
    "summary": "ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session.",
    "evidence": "osv:CVE-2018-0487",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-0487",
      "aliases": [
        "CVE-2018-0487"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/Mbed-TLS/mbedtls",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1910aa78a3677f1bc2a6c6af61d08dc4cccd917a"
                },
                {
                  "fixed": "40334b814c8736a49530b7065844a7bdca3530bd"
                },
                {
                  "introduced": "0a0c22e0efcf2f8f71d7e16712f80b8f77326f72"
                },
                {
                  "fixed": "4c53d0dcb295d36202fe9df535aba0dafddbf670"
                },
                {
                  "introduced": "8254ed2a9fadede8c6bf414072f78fc78d5af61c"
                },
                {
                  "fixed": "32605dc83042d737e715a685e53176388d73540e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.3.8"
                      },
                      {
                        "fixed": "1.3.22"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.1.0"
                      },
                      {
                        "fixed": "2.1.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.2.0"
                      },
                      {
                        "fixed": "2.7.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "mbedtls-2.7.0-rc1",
            "mbedtls-1.3.21",
            "mbedtls-2.6.0",
            "mbedtls-2.1.9",
            "mbedtls-1.3.21-rc1",
            "mbedtls-2.1.9-rc1",
            "mbedtls-2.6.0-rc1",
            "mbedtls-1.3.20",
            "mbedtls-2.1.8",
            "mbedtls-2.5.1",
            "mbedtls-2.5.0",
            "mbedtls-1.3.19",
            "mbedtls-2.1.6",
            "mbedtls-1.3.18",
            "mbedtls-2.4.0",
            "mbedtls-1.3.17",
            "mbedtls-2.1.5",
            "mbedtls-2.2.1",
            "yotta-2.3.1",
            "mbedtls-2.3.0",
            "mbedtls-1.3.16",
            "mbedtls-2.1.4",
            "mbedtls-1.3.15",
            "mbedtls-2.1.3",
            "mbedtls-2.2.0",
            "mbedos-release-15-11",
            "mbedtls-2.1.2",
            "mbedtls-1.3.14",
            "mbedtls-2.1.0",
            "mbedtls-1.3.13",
            "mbedtls-2.1.1",
            "mbedtls-1.3.12",
            "mbedtls-1.3.11",
            "list",
            "polarssl-1.3.9",
            "polarssl-1.3.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-0487.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:20.361505778Z",
      "provider": "osv",
      "references": [
        "https://usn.ubuntu.com/4267-1/",
        "https://security.gentoo.org/glsa/201804-19",
        "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01",
        "https://www.debian.org/security/2018/dsa-4138",
        "https://www.debian.org/security/2018/dsa-4147"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  },
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-0487",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430251,
  "published_at": "2018-02-13T15:29:00.217+00:00"
}