github - ghsa-rc58-rfcj-mcrr

GHSA-RC58-RFCJ-MCRR

Vulnerability from github – Published: 2022-05-13 01:30 – Updated: 2022-05-13 01:30

Details

Yubico libu2f-host 1.1.6 contains unchecked buffers in devs.c, which could enable a malicious token to exploit a buffer overflow. An attacker could use this to attempt to execute malicious code using a crafted USB device masquerading as a security token on a computer where the affected library is currently in use. It is not possible to perform this attack with a genuine YubiKey.

Severity ?

6.8 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2018-20340"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-03-21T16:00:00Z",
    "severity": "MODERATE"
  },
  "details": "Yubico libu2f-host 1.1.6 contains unchecked buffers in devs.c, which could enable a malicious token to exploit a buffer overflow. An attacker could use this to attempt to execute malicious code using a crafted USB device masquerading as a security token on a computer where the affected library is currently in use. It is not possible to perform this attack with a genuine YubiKey.",
  "id": "GHSA-rc58-rfcj-mcrr",
  "modified": "2022-05-13T01:30:24Z",
  "published": "2022-05-13T01:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20340"
    },
    {
      "type": "WEB",
      "url": "https://blog.inhq.net/posts/yubico-libu2f-host-vuln-part1"
    },
    {
      "type": "WEB",
      "url": "https://developers.yubico.com/libu2f-host/Release_Notes.html"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2019/Feb/23"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202004-15"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2019/dsa-4389"
    },
    {
      "type": "WEB",
      "url": "https://www.yubico.com/support/security-advisories/ysa-2019-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-20340 (GCVE-0-2018-20340)

Vulnerability from cvelistv5 – Published: 2019-03-17 20:06 – Updated: 2024-08-05 11:58

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://seclists.org/bugtraq/2019/Feb/23	x_refsource_MISC
	https://www.debian.org/security/2019/dsa-4389	x_refsource_MISC
	https://www.yubico.com/support/security-advisorie…	x_refsource_CONFIRM
	https://developers.yubico.com/libu2f-host/Release…	x_refsource_CONFIRM
	https://blog.inhq.net/posts/yubico-libu2f-host-vu…	x_refsource_MISC
	https://security.gentoo.org/glsa/202004-15	vendor-advisoryx_refsource_GENTOO

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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-RC58-RFCJ-MCRR

CVE-2018-20340 (GCVE-0-2018-20340)

Tags

Sightings

Nomenclature