Fix CVE(s): CVE-2026-54874, CVE-2026-63072

{
  "id": "89cc3e6070b4299410bc173d001f89913c74e287e1435ac6609c0fc28d710179",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1788856499",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Fix CVE(s): CVE-2026-54874, CVE-2026-63072",
    "summary": "* SECURITY UPDATE: Unbounded memory retention in the DTLS record layer. dtls1_buffer_record() adopted the entire live read buffer for every queued record and allocated a fresh one, so a peer could pin roughly 16.7 KB of heap per queued record regardless of how small the record actually was, up to the 100-entry queue limit, exhausting memory on the endpoint. - debian/patches/CVE-2026-54874.patch: copy only the received record into a right-sized allocation and restore it on retrieval, leaving the live read buffer in place, in ssl/record/rec_layer_d1.c, ssl/record/record.h and ssl/record/ssl3_record.c. - CVE-2026-54874 * SECURITY UPDATE: Heap buffer overflow in CMS key-agreement recipient processing. For AES key wrap with padding the output size query returns inlen-8 and drives the allocation, while the key-unwrap failure paths then cleanse the full inlen, writing eight bytes past the allocation. - debian/patches/CVE-2026-63072.patch: allocate at least the input length in cms_kek_cipher() in crypto/cms/cms_kari.c. - debian/patches/CVE-2026-63072-test.patch: add the upstream regression test to test/cmsapitest.c and test/recipes/80-test_cmsapi.t. - CVE-2026-63072",
    "evidence": "osv:CLSA-2026-1788856499",
    "products": [
      {
        "name": {
          "value": "libssl-dev",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.1.1-1ubuntu2.1~18.04.23+tuxcare.els11",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libssl-doc",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.1.1-1ubuntu2.1~18.04.23+tuxcare.els11",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libssl1.1",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.1.1-1ubuntu2.1~18.04.23+tuxcare.els11",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openssl",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.1.1-1ubuntu2.1~18.04.23+tuxcare.els11",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1788856499",
      "aliases": [
        "CLSA-2026-1788856499"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.1.1-1ubuntu2.1~18.04.23+tuxcare.els11"
                }
              ]
            }
          ],
          "package": {
            "name": "libssl-dev",
            "purl": "pkg:deb/tuxcare/libssl-dev?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788856499.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.1.1-1ubuntu2.1~18.04.23+tuxcare.els11"
                }
              ]
            }
          ],
          "package": {
            "name": "libssl-doc",
            "purl": "pkg:deb/tuxcare/libssl-doc?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788856499.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.1.1-1ubuntu2.1~18.04.23+tuxcare.els11"
                }
              ]
            }
          ],
          "package": {
            "name": "libssl1.1",
            "purl": "pkg:deb/tuxcare/libssl1.1?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788856499.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.1.1-1ubuntu2.1~18.04.23+tuxcare.els11"
                }
              ]
            }
          ],
          "package": {
            "name": "openssl",
            "purl": "pkg:deb/tuxcare/openssl?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788856499.json"
          }
        }
      ],
      "modified": "2026-10-26T09:32:03.922819167Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-54874",
        "CVE-2026-63072"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1788856499.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-54874",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-63072"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-54874",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-63072",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 449566,
  "published_at": "2026-09-08T08:35:09+00:00"
}