{
"id": "GHSA-qc36-q22q-cjw3",
"aliases": [
"CVE-2021-38189"
],
"details": "### Impact\n\nAffected 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.\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",
"summary": "SMTP command injection in lettre",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0.7.0"
},
{
"fixed": "0.9.6"
}
]
}
],
"package": {
"name": "lettre",
"ecosystem": "crates.io"
}
}
],
"modified": "2021-08-18T18:52:26Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"published": "2021-07-12T17:03:27Z",
"references": [
{
"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": "WEB"
},
{
"url": "https://github.com/lettre/lettre",
"type": "PACKAGE"
},
{
"url": "https://rustsec.org/advisories/RUSTSEC-2021-0069.html",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-147"
],
"severity": "CRITICAL",
"github_reviewed": true,
"nvd_published_at": "2021-08-08T06:15:00Z",
"github_reviewed_at": "2021-06-01T20:41:39Z"
}
}