ghsa-ww6v-6x26-hgfc
Vulnerability from github
Published
2022-09-30 00:00
Modified
2025-05-20 21:30
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details

In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake. This occurs when an attacker supposedly resumes a previous TLS session. During the resumption Client Hello a Hello Retry Request must be triggered. Both Client Hellos are required to contain a list of duplicate cipher suites to trigger the buffer overflow. In total, two Client Hellos have to be sent: one in the resumed session, and a second one as a response to a Hello Retry Request message.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-39173"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-29T01:15:00Z",
    "severity": "HIGH"
  },
  "details": "In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake. This occurs when an attacker supposedly resumes a previous TLS session. During the resumption Client Hello a Hello Retry Request must be triggered. Both Client Hellos are required to contain a list of duplicate cipher suites to trigger the buffer overflow. In total, two Client Hellos have to be sent: one in the resumed session, and a second one as a response to a Hello Retry Request message.",
  "id": "GHSA-ww6v-6x26-hgfc",
  "modified": "2025-05-20T21:30:26Z",
  "published": "2022-09-30T00:00:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39173"
    },
    {
      "type": "WEB",
      "url": "https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/releases"
    },
    {
      "type": "WEB",
      "url": "https://www.wolfssl.com/docs/security-vulnerabilities"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/169600/wolfSSL-Buffer-Overflow.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2022/Oct/24"
    }
  ],
  "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"
    }
  ]
}


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