{
"id": "GHSA-6528-wvf6-f6qg",
"aliases": [
"CVE-2018-6594"
],
"details": "lib/Crypto/PublicKey/ElGamal.py in PyCrypto through 2.6.1 generates weak ElGamal key parameters, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for PyCrypto's ElGamal implementation.",
"summary": "Pycrypto generates weak key parameters",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.6.1"
}
]
}
],
"package": {
"name": "pycrypto",
"ecosystem": "PyPI"
}
}
],
"modified": "2024-10-18T21:58:31Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
}
],
"published": "2018-07-12T20:29:26Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6594",
"type": "ADVISORY"
},
{
"url": "https://github.com/dlitz/pycrypto/issues/253",
"type": "WEB"
},
{
"url": "https://github.com/TElgamal/attack-on-pycrypto-elgamal",
"type": "WEB"
},
{
"url": "https://github.com/advisories/GHSA-6528-wvf6-f6qg",
"type": "ADVISORY"
},
{
"url": "https://github.com/dlitz/pycrypto",
"type": "PACKAGE"
},
{
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pycrypto/PYSEC-2018-97.yaml",
"type": "WEB"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00018.html",
"type": "WEB"
},
{
"url": "https://security.gentoo.org/glsa/202007-62",
"type": "WEB"
},
{
"url": "https://usn.ubuntu.com/3616-1",
"type": "WEB"
},
{
"url": "https://usn.ubuntu.com/3616-2",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-326"
],
"severity": "HIGH",
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2020-06-16T21:18:02Z"
}
}