ubuntu-cve-2026-8721
Vulnerability from osv_ubuntu
Published
2026-05-17 19:16
Modified
2026-05-17 19:16
Summary
Details

Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl truncates passwords with embedded NULLs. Password parameters in PKCS12.xs are declared char *, which routes through Perl's default typemap to SvPV_nolen. The Perl length is discarded. The C code (or OpenSSL internally) calls strlen() on the buffer. Any password byte at or after the first NULL is silently dropped. Binary / KDF-derived / HMAC-derived passwords lose entropy without any warnings.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "0.7-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libcrypt-openssl-pkcs12-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl@0.7-1build1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.7-1",
        "0.7-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "0.8-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libcrypt-openssl-pkcs12-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl@0.8-1build1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.7-3ubuntu2",
        "0.8-1",
        "0.8-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "1.2-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libcrypt-openssl-pkcs12-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl@1.2-1build1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2-1",
        "1.2-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "1.9-3build4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libcrypt-openssl-pkcs12-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl@1.9-3build4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9-2",
        "1.9-3",
        "1.9-3build1",
        "1.9-3build3",
        "1.9-3build4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "1.94-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libcrypt-openssl-pkcs12-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl@1.94-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.94-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "1.94-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libcrypt-openssl-pkcs12-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl@1.94-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.94-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl truncates passwords with embedded NULLs. Password parameters in PKCS12.xs are declared char *, which routes through Perl\u0027s default typemap to SvPV_nolen.  The Perl length is discarded. The C code (or OpenSSL internally) calls strlen() on the buffer.  Any password byte at or after the first NULL is silently dropped. Binary / KDF-derived / HMAC-derived passwords lose entropy without any warnings.",
  "id": "UBUNTU-CVE-2026-8721",
  "modified": "2026-05-17T19:16:00Z",
  "published": "2026-05-17T19:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-8721"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-8721"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/40149249/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/dsully/perl-crypt-openssl-pkcs12/commit/7b90e88a97f0ebe440032b8116249d1004d7ca6f"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/dsully/perl-crypt-openssl-pkcs12/commit/468712ae04188342b263f057ad65f21a3545013b"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/dsully/perl-crypt-openssl-pkcs12/commit/68904cd32691e223ad9eeff914812b8641eea14b"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/dsully/perl-crypt-openssl-pkcs12/commit/d69393f3207586e3c6f2fe1a21b0b8972b93f8db"
    },
    {
      "type": "REPORT",
      "url": "https://metacpan.org/release/JONASBN/Crypt-OpenSSL-PKCS12-1.95/view/Changes.md"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/17/6"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-8721"
  ]
}



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