GHSA-PG75-V6FP-8Q59

Vulnerability from github – Published: 2023-08-01 20:16 – Updated: 2023-08-01 20:16
VLAI?
Summary
Keylime's registrar vulnerable to Denial-of-service attack via a single open connection
Details

Impact

Keylime registrar is prone to a simple denial of service attack in which an adversary opens a connection to the TLS port (by default, port 8891) blocking further, legitimate connections. As long as the connection is open, the registrar is blocked and cannot serve any further clients (agents and tenants), which prevents normal operation. The problem does not affect the verifier.

Patches

Users should upgrade to release 7.4.0

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "keylime"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-38200"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-834"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-01T20:16:29Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\nKeylime `registrar` is prone to a simple denial of service attack in which an adversary opens a connection to the TLS port (by default, port `8891`) blocking further, legitimate connections. As long as the connection is open, the `registrar` is blocked and cannot serve any further clients (`agents` and `tenants`), which prevents normal operation. The problem does not affect the `verifier`.\n\n### Patches\nUsers should upgrade to release 7.4.0",
  "id": "GHSA-pg75-v6fp-8q59",
  "modified": "2023-08-01T20:16:29Z",
  "published": "2023-08-01T20:16:29Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/keylime/keylime/security/advisories/GHSA-pg75-v6fp-8q59"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38200"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keylime/keylime/pull/1421"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keylime/keylime/commit/c68d8f0b7ea549c12b6956ab0f3c28ae0360ae17"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-38200"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2222692"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keylime/keylime"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keylime/keylime/releases/tag/v7.4.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keylime\u0027s registrar vulnerable to Denial-of-service attack via a single open connection"
}


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  • 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.