ubuntu-cve-2020-26572
Vulnerability from osv_ubuntu
Published
2020-10-06 02:15
Modified
2025-09-08 16:46
Summary
Details

The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "opensc",
            "binary_version": "0.15.0-1ubuntu1+esm1"
          },
          {
            "binary_name": "opensc-pkcs11",
            "binary_version": "0.15.0-1ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "opensc",
        "purl": "pkg:deb/ubuntu/opensc@0.15.0-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.15.0-1ubuntu1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.15.0-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "opensc",
            "binary_version": "0.17.0-3ubuntu0.1~esm1"
          },
          {
            "binary_name": "opensc-pkcs11",
            "binary_version": "0.17.0-3ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "opensc",
        "purl": "pkg:deb/ubuntu/opensc@0.17.0-3ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.17.0-3ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.17.0-1",
        "0.17.0-2",
        "0.17.0-2build1",
        "0.17.0-3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "opensc",
            "binary_version": "0.20.0-3ubuntu0.1~esm1"
          },
          {
            "binary_name": "opensc-pkcs11",
            "binary_version": "0.20.0-3ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "opensc",
        "purl": "pkg:deb/ubuntu/opensc@0.20.0-3ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.20.0-3ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.19.0-2",
        "0.20.0-1",
        "0.20.0-2",
        "0.20.0-3"
      ]
    }
  ],
  "aliases": [],
  "details": "The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.",
  "id": "UBUNTU-CVE-2020-26572",
  "modified": "2025-09-08T16:46:25Z",
  "published": "2020-10-06T02:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-26572"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22967"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/OpenSC/OpenSC/commit/9d294de90d1cc66956389856e60b6944b27b4817"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5281-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-26572"
    }
  ],
  "related": [
    "USN-5281-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-26572"
  ]
}



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