GHSA-QC36-Q22Q-CJW3

Vulnerability from github – Published: 2021-07-12 17:03 – Updated: 2021-08-18 18:52
VLAI?
Summary
SMTP command injection in lettre
Details

Impact

Affected versions of lettre allowed SMTP command injection through an attacker's controlled message body. The module for escaping lines starting with a period wouldn't catch a period that was placed after a double CRLF sequence, allowing the attacker to end the current message and write arbitrary SMTP commands after it.

Fix

The flaw is fixed by correctly handling consecutive CRLF sequences.

References

Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "lettre"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.7.0"
            },
            {
              "fixed": "0.9.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-38189"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-147"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-06-01T20:41:39Z",
    "nvd_published_at": "2021-08-08T06:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nAffected versions of lettre allowed SMTP command injection through an attacker\u0027s controlled message body. The module for escaping lines starting with a period wouldn\u0027t catch a period that was placed after a double CRLF sequence, allowing the attacker to end the current message and write arbitrary SMTP commands after it.\n\n### Fix\n\nThe flaw is fixed by correctly handling consecutive CRLF sequences.\n\n### References\n\n* [RUSTSEC-2021-0069](https://rustsec.org/advisories/RUSTSEC-2021-0069.html)\n\n\n\n",
  "id": "GHSA-qc36-q22q-cjw3",
  "modified": "2021-08-18T18:52:26Z",
  "published": "2021-07-12T17:03:27Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/lettre/lettre/security/advisories/GHSA-qc36-q22q-cjw3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lettre/lettre/pull/627/commits/93458d01fed0ec81c0e7b4e98e6f35961356fae2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lettre/lettre/commit/8bfc20506cc5e098fe6eb3d1cafe3bea791215ce"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/lettre/lettre"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0069.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SMTP command injection in lettre"
}


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