{
"id": "GHSA-mmc9-pwm7-qj5w",
"aliases": [
"CVE-2020-25576"
],
"details": "### Impact\nAffected versions of this crate violated alignment when casting byte slices to integer slices, resulting in undefined behavior. `rand_core::BlockRng::next_u64` and `rand_core::BlockRng::fill_bytes` are affected.\n\n### Patches\nThe flaw was corrected by Ralf Jung and Diggory Hardy for `rand_core >= 0.4.2`.\n\n### Workarounds\nNone.\n\n### References\nSee [Rand's changelog](https://github.com/rust-random/rand/blob/master/rand_core/CHANGELOG.md#050---2019-06-06).\n\n### For more information\nIf you have any questions or comments about this advisory, [open an issue in the Rand repository](https://github.com/rust-random/rand/issues/new/choose).\n\n",
"summary": "Unaligned memory access in rand_core",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0.4.0"
},
{
"fixed": "0.4.2"
}
]
}
],
"package": {
"name": "rand_core",
"ecosystem": "crates.io"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.1"
}
]
}
],
"package": {
"name": "rand_core",
"ecosystem": "crates.io"
}
}
],
"modified": "2021-08-18T20:45:24Z",
"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": "2021-08-25T20:56:50Z",
"references": [
{
"url": "https://github.com/rust-random/rand/security/advisories/GHSA-mmc9-pwm7-qj5w",
"type": "WEB"
},
{
"url": "https://github.com/rust-random/rand",
"type": "PACKAGE"
},
{
"url": "https://github.com/rust-random/rand/blob/master/rand_core/CHANGELOG.md#050---2019-06-06",
"type": "WEB"
},
{
"url": "https://rustsec.org/advisories/RUSTSEC-2019-0035.html",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-704"
],
"severity": "CRITICAL",
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2021-08-18T20:45:24Z"
}
}