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CriticalFix available

mbedtls — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2022-46393

An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.

Products
mbedtls
Affected versions
Not specified
Fixed versions
2.28.2-1
CVEs
CVE-2022-46393
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 15:03 UTC · Revision 1

Source evidence

DEBIAN-CVE-2022-46393

core-osv · Original source

Published 15 Dec 2022, 23:15 UTC

An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.

osv:DEBIAN-CVE-2022-46393

mbedtls

Fixed versions: 2.28.2-1

mbedtls

Fixed versions: 2.28.2-1

mbedtls

Fixed versions: 2.28.2-1

Complete source record
{
  "id": "16df212a616acd0dab02f5e4a0ea6a441e6885806d202f7f05a0abea2fdd1520",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-46393",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2022-46393",
    "summary": "An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.",
    "evidence": "osv:DEBIAN-CVE-2022-46393",
    "products": [
      {
        "name": {
          "value": "mbedtls",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.28.2-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "mbedtls",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.28.2-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "mbedtls",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.28.2-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "DEBIAN-CVE-2022-46393",
      "aliases": [
        "DEBIAN-CVE-2022-46393"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.28.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "mbedtls",
            "purl": "pkg:deb/debian/mbedtls?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-46393.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.28.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "mbedtls",
            "purl": "pkg:deb/debian/mbedtls?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-46393.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.28.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "mbedtls",
            "purl": "pkg:deb/debian/mbedtls?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-46393.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-15T08:02:46.375524374Z",
      "provider": "osv",
      "upstream": [
        "CVE-2022-46393"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2022-46393"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2022-46393",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 324194,
  "published_at": "2022-12-15T23:15:10.57+00:00"
}