Fix CVE(s): CVE-2026-45447

{
  "id": "66065d47240401288b580c298447cb6a8bd74a445760dcb648fff8d4a9a0335e",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1781276539",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Fix CVE(s): CVE-2026-45447",
    "summary": "* SECURITY UPDATE: Use-after-free in PKCS7_verify() during BIO chain cleanup - debian/patches/CVE-2026-45447.patch: free the BIO chain built by PKCS7_dataInit() one BIO at a time, stopping at the caller-provided indata BIO, in PKCS7_verify() in crypto/pkcs7/pk7_smime.c instead of relying on BIO_pop()/BIO_free_all() which could leave a dangling reference and trigger a use-after-free - CVE-2026-45447",
    "evidence": "osv:CLSA-2026-1781276539",
    "products": [
      {
        "name": {
          "value": "libssl-dev",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.1.1f-1ubuntu2.24+tuxcare.els6",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libssl-doc",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.1.1f-1ubuntu2.24+tuxcare.els6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libssl1.1",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.1.1f-1ubuntu2.24+tuxcare.els6",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openssl",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.1.1f-1ubuntu2.24+tuxcare.els6",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1781276539",
      "aliases": [
        "CLSA-2026-1781276539"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.1.1f-1ubuntu2.24+tuxcare.els6"
                }
              ]
            }
          ],
          "package": {
            "name": "libssl-dev",
            "purl": "pkg:deb/tuxcare/libssl-dev?distro=ubuntu-20.04",
            "ecosystem": "TuxCare:Ubuntu:20.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781276539.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.1.1f-1ubuntu2.24+tuxcare.els6"
                }
              ]
            }
          ],
          "package": {
            "name": "libssl-doc",
            "purl": "pkg:deb/tuxcare/libssl-doc?distro=ubuntu-20.04",
            "ecosystem": "TuxCare:Ubuntu:20.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781276539.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.1.1f-1ubuntu2.24+tuxcare.els6"
                }
              ]
            }
          ],
          "package": {
            "name": "libssl1.1",
            "purl": "pkg:deb/tuxcare/libssl1.1?distro=ubuntu-20.04",
            "ecosystem": "TuxCare:Ubuntu:20.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781276539.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.1.1f-1ubuntu2.24+tuxcare.els6"
                }
              ]
            }
          ],
          "package": {
            "name": "openssl",
            "purl": "pkg:deb/tuxcare/openssl?distro=ubuntu-20.04",
            "ecosystem": "TuxCare:Ubuntu:20.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781276539.json"
          }
        }
      ],
      "modified": "2026-10-26T09:32:05.228671411Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-45447"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1781276539.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-45447"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-45447",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 449671,
  "published_at": "2026-06-12T15:02:36+00:00"
}