ubuntu-cve-2022-35409
Vulnerability from osv_ubuntu
Published
2022-07-15 14:15
Modified
2026-04-22 07:41
Summary
Details

An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information disclosure based on error responses. Affected configurations have MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE enabled and MBEDTLS_SSL_IN_CONTENT_LEN less than a threshold that depends on the configuration: 258 bytes if using mbedtls_ssl_cookie_check, and possibly up to 571 bytes with a custom cookie check function.

Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmbedcrypto7",
            "binary_version": "2.28.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libmbedtls14",
            "binary_version": "2.28.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libmbedx509-1",
            "binary_version": "2.28.0-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "mbedtls",
        "purl": "pkg:deb/ubuntu/mbedtls@2.28.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.16.9-0.1ubuntu1",
        "2.16.11-0.1ubuntu1",
        "2.16.11-0.3",
        "2.28.0-1",
        "2.28.0-1build1",
        "2.28.0-1ubuntu0.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information disclosure based on error responses. Affected configurations have MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE enabled and MBEDTLS_SSL_IN_CONTENT_LEN less than a threshold that depends on the configuration: 258 bytes if using mbedtls_ssl_cookie_check, and possibly up to 571 bytes with a custom cookie check function.",
  "id": "UBUNTU-CVE-2022-35409",
  "modified": "2026-04-22T07:41:38Z",
  "published": "2022-07-15T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-35409"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls-docs/blob/5e9790353d2d9e41e85262eebe52fd90bb49f1e0/security-advisories/advisories/mbedtls-security-advisory-2022-07.md"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls/commit/f333dfab4a6c2d8a604a61558a8f783145161de4"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls/commit/e5af9fabf7d68e3807b6ea78792794b8352dbba2"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls/commit/862acb84033840b7e6376a4155ed5be2a6a4e117"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls/commit/a39170bbed1f5a69f108ea19fe3510c3643d53ab"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls/commit/33f41a8fa858128d5e9a1d1e1afbd4e63f24d444"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls/commit/4353d3d593cda3849a04c676288e0c790fa86a3c"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls/commit/3c036f54cc3a25e4d6b8003202b7e640522f4621"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls/commit/6b4f062cde84b9df57275676c428508ec6e41211"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Mbed-TLS/mbedtls/commit/719c723afc63930d3472a12c0edb654a7d08d6b9"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-35409"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-35409"
  ]
}



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