Vulnerability-Lookup

oesa-2021-1021

Vulnerability from osv_openeuler

Published

2021-02-04 11:04

Modified

2026-08-06 11:04

Summary

opensc security update

Details

OpenSC provides a set of libraries and utilities to work with smart cards. Its main focus is on cards that support cryptographic operations, and facilitate their use in security applications such as authentication, mail encryption and digital signatures. OpenSC implements the standard APIs to smart cards, e.g. PKCS#11 API, Windows' Smart Card Minidriver and macOS Tokend.\r\n\r\n Security Fix(es):\r\n\r\n The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.(CVE-2020-26570)\r\n\r\n

Severity

5.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-26570	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "opensc-0.20.0-4.oe1.aarch64.rpm",
          "opensc-debuginfo-0.20.0-4.oe1.aarch64.rpm",
          "opensc-debugsource-0.20.0-4.oe1.aarch64.rpm",
          "opensc-0.20.0-5.oe1.aarch64.rpm",
          "opensc-debuginfo-0.20.0-5.oe1.aarch64.rpm",
          "opensc-debugsource-0.20.0-5.oe1.aarch64.rpm"
        ],
        "noarch": [
          "opensc-help-0.20.0-4.oe1.noarch.rpm",
          "opensc-help-0.20.0-5.oe1.noarch.rpm"
        ],
        "src": [
          "opensc-0.20.0-4.oe1.src.rpm",
          "opensc-0.20.0-5.oe1.src.rpm"
        ],
        "x86_64": [
          "opensc-0.20.0-4.oe1.x86_64.rpm",
          "opensc-debuginfo-0.20.0-4.oe1.x86_64.rpm",
          "opensc-debugsource-0.20.0-4.oe1.x86_64.rpm",
          "opensc-0.20.0-5.oe1.x86_64.rpm",
          "opensc-debuginfo-0.20.0-5.oe1.x86_64.rpm",
          "opensc-debugsource-0.20.0-5.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS",
        "name": "opensc",
        "purl": "pkg:rpm/openEuler/opensc\u0026distro=openEuler-20.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.20.0-5.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "opensc-0.20.0-5.oe1.aarch64.rpm",
          "opensc-debuginfo-0.20.0-5.oe1.aarch64.rpm",
          "opensc-debugsource-0.20.0-5.oe1.aarch64.rpm"
        ],
        "noarch": [
          "opensc-help-0.20.0-5.oe1.noarch.rpm"
        ],
        "src": [
          "opensc-0.20.0-5.oe1.src.rpm"
        ],
        "x86_64": [
          "opensc-0.20.0-5.oe1.x86_64.rpm",
          "opensc-debuginfo-0.20.0-5.oe1.x86_64.rpm",
          "opensc-debugsource-0.20.0-5.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "opensc",
        "purl": "pkg:rpm/openEuler/opensc\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.20.0-5.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "OpenSC provides a set of libraries and utilities to work with smart cards. Its main focus is on cards that support cryptographic operations, and facilitate their use in security applications such as authentication, mail encryption and digital signatures. OpenSC implements the standard APIs to smart cards, e.g. PKCS#11 API, Windows\u0027 Smart Card Minidriver and macOS Tokend.\\r\\n\\r\\n\r\nSecurity Fix(es):\\r\\n\\r\\n\r\nThe Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.(CVE-2020-26570)\\r\\n\\r\\n",
  "id": "OESA-2021-1021",
  "modified": "2026-08-06T11:04:15Z",
  "published": "2021-02-04T11:04:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1021"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26570"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "opensc security update",
  "upstream": [
    "CVE-2020-26570"
  ]
}

CVE-2020-26570 (GCVE-0-2020-26570)

Vulnerability from cvelistv5 – Published: 2020-10-06 01:04 – Updated: 2024-08-04 15:56

Summary

The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
https://github.com/OpenSC/OpenSC/commit/6903aebfd…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/11/24/4	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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              "x_transferred"
            ],
            "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24316"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://github.com/OpenSC/OpenSC/commit/6903aebfddc466d966c7b865fae34572bf3ed23e"
          },
          {
            "name": "[oss-security] 20201124 OpenSC 0.21.0 released",
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            "url": "http://www.openwall.com/lists/oss-security/2020/11/24/4"
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXOHFDMNMO6IDECAGUTB3SJGAGXVRT6S/"
          },
          {
            "name": "[debian-lts-announce] 20211129 [SECURITY] [DLA 2832-1] opensc security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00027.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.