{
"id": "GHSA-m9m5-cg5h-r582",
"aliases": [
"CVE-2020-35926"
],
"details": "In versions of nanorand prior to 0.5.1, RandomGen implementations for standard unsigned integers could fail to properly generate numbers, due to using bit-shifting to truncate a 64-bit number, rather than just an as conversion. This often manifested as RNGs returning nothing but 0, including the cryptographically secure ChaCha random number generator.",
"summary": "Improper random number generation in nanorand",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.5.1"
}
]
}
],
"package": {
"name": "nanorand",
"ecosystem": "crates.io"
}
}
],
"modified": "2023-06-13T20:01:40Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
}
],
"published": "2021-08-25T20:50:24Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35926",
"type": "ADVISORY"
},
{
"url": "https://github.com/Absolucy/nanorand-rs/commit/5ba218ac29df4786b002d7d12b47fa0c04a331f2",
"type": "WEB"
},
{
"url": "https://github.com/Absolucy/nanorand-rs",
"type": "PACKAGE"
},
{
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0089.html",
"type": "WEB"
},
{
"url": "https://twitter.com/aspenluxxxy/status/1336684692284772352",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-338"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2021-08-19T18:55:41Z"
}
}