github - ghsa-rx8c-cr48-p2ff

GHSA-RX8C-CR48-P2FF

Vulnerability from github – Published: 2022-05-24 17:22 – Updated: 2022-05-24 17:22

Details

An issue was discovered in Yubico libykpiv before 2.1.0. lib/util.c in this library (which is included in yubico-piv-tool) does not properly check embedded length fields during device communication. A malicious PIV token can misreport the returned length fields during RSA key generation. This will cause stack memory to be copied into heap allocated memory that gets returned to the caller. The leaked memory could include PINs, passwords, key material, and other sensitive information depending on the integration. During further processing by the caller, this information could leak across trust boundaries. Note that RSA key generation is triggered by the host and cannot directly be triggered by the token.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-13131"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-07-09T18:15:00Z",
    "severity": "LOW"
  },
  "details": "An issue was discovered in Yubico libykpiv before 2.1.0. lib/util.c in this library (which is included in yubico-piv-tool) does not properly check embedded length fields during device communication. A malicious PIV token can misreport the returned length fields during RSA key generation. This will cause stack memory to be copied into heap allocated memory that gets returned to the caller. The leaked memory could include PINs, passwords, key material, and other sensitive information depending on the integration. During further processing by the caller, this information could leak across trust boundaries. Note that RSA key generation is triggered by the host and cannot directly be triggered by the token.",
  "id": "GHSA-rx8c-cr48-p2ff",
  "modified": "2022-05-24T17:22:41Z",
  "published": "2022-05-24T17:22:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13131"
    },
    {
      "type": "WEB",
      "url": "https://blog.inhq.net/posts/yubico-libykpiv-vuln"
    },
    {
      "type": "WEB",
      "url": "https://www.yubico.com/products/services-software/download/smart-card-drivers-tools"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-13131 (GCVE-0-2020-13131)

Vulnerability from cvelistv5 – Published: 2020-07-09 17:50 – Updated: 2024-08-04 12:11

Summary

Severity ?

4.3 (Medium)


                        
                          CVSS:3.0/AC:L/AV:P/A:N/C:H/I:N/PR:N/S:U/UI:R

CWE

Assigner

mitre

References

URL

Tags

	https://blog.inhq.net/posts/yubico-libykpiv-vuln/	x_refsource_MISC
	https://www.yubico.com/products/services-software…	x_refsource_CONFIRM

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            "url": "https://www.yubico.com/products/services-software/download/smart-card-drivers-tools/"
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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-RX8C-CR48-P2FF

CVE-2020-13131 (GCVE-0-2020-13131)

Tags

Sightings

Nomenclature