Vulnerability-Lookup

GHSA-H572-QC5H-FC64

Vulnerability from github – Published: 2022-05-01 02:09 – Updated: 2022-05-01 02:09

Details

OpenVPN before 2.0.1, when running with "verb 0" and without TLS authentication, does not properly flush the OpenSSL error queue when a client fails certificate authentication to the server and causes the error to be processed by the wrong client, which allows remote attackers to cause a denial of service (client disconnection) via a large number of failed authentication attempts.

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{
  "affected": [],
  "aliases": [
    "CVE-2005-2531"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2005-08-24T04:00:00Z",
    "severity": "MODERATE"
  },
  "details": "OpenVPN before 2.0.1, when running with \"verb 0\" and without TLS authentication, does not properly flush the OpenSSL error queue when a client fails certificate authentication to the server and causes the error to be processed by the wrong client, which allows remote attackers to cause a denial of service (client disconnection) via a large number of failed authentication attempts.",
  "id": "GHSA-h572-qc5h-fc64",
  "modified": "2022-05-01T02:09:06Z",
  "published": "2022-05-01T02:09:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2005-2531"
    },
    {
      "type": "WEB",
      "url": "http://openvpn.net/changelog.html"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/16463"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/17103"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2005/dsa-851"
    },
    {
      "type": "WEB",
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2005:145"
    },
    {
      "type": "WEB",
      "url": "http://www.novell.com/linux/security/advisories/2005_20_sr.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/14605"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2005-2531 (GCVE-0-2005-2531)

Vulnerability from cvelistv5 – Published: 2005-08-24 04:00 – Updated: 2024-08-07 22:30

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

7 references

URL	Tags
http://www.securityfocus.com/bid/14605	vdb-entryx_refsource_BID
http://secunia.com/advisories/17103	third-party-advisoryx_refsource_SECUNIA
http://openvpn.net/changelog.html	x_refsource_CONFIRM
http://www.mandriva.com/security/advisories?name=…	vendor-advisoryx_refsource_MANDRIVA
http://www.novell.com/linux/security/advisories/2…	vendor-advisoryx_refsource_SUSE
http://www.debian.org/security/2005/dsa-851	vendor-advisoryx_refsource_DEBIAN
http://secunia.com/advisories/16463	third-party-advisoryx_refsource_SECUNIA

Date Public

2005-08-22 00:00

Show details on NVD website

JSON

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        "providerMetadata": {
          "dateUpdated": "2024-08-07T22:30:01.294Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
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            ],
            "url": "http://www.securityfocus.com/bid/14605"
          },
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            "url": "http://secunia.com/advisories/17103"
          },
          {
            "tags": [
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            ],
            "url": "http://openvpn.net/changelog.html"
          },
          {
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            "tags": [
              "vendor-advisory",
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            ],
            "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2005:145"
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            "url": "http://www.debian.org/security/2005/dsa-851"
          },
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            ],
            "url": "http://secunia.com/advisories/16463"
          }
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        }
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      "providerMetadata": {
        "dateUpdated": "2005-09-23T09:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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        },
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        },
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          "name": "DSA-851",
          "tags": [
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            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2005/dsa-851"
        },
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          "name": "16463",
          "tags": [
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          ],
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        }
      ],
      "x_legacyV4Record": {
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          "ID": "CVE-2005-2531",
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        },
        "affects": {
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              "url": "http://secunia.com/advisories/17103"
            },
            {
              "name": "http://openvpn.net/changelog.html",
              "refsource": "CONFIRM",
              "url": "http://openvpn.net/changelog.html"
            },
            {
              "name": "MDKSA-2005:145",
              "refsource": "MANDRIVA",
              "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2005:145"
            },
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              "refsource": "SUSE",
              "url": "http://www.novell.com/linux/security/advisories/2005_20_sr.html"
            },
            {
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              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2005/dsa-851"
            },
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              "url": "http://secunia.com/advisories/16463"
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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.

Action not permitted

GHSA-H572-QC5H-FC64

CVE-2005-2531 (GCVE-0-2005-2531)

Tags

Sightings

Nomenclature