CVE-2021-27378

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Source
https://cve.org/CVERecord?id=CVE-2021-27378
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27378.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-27378
Aliases
Downstream
Related
Published
2021-02-18T04:15:11Z
Modified
2026-07-08T23:59:00Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in the rand_core crate before 0.6.2 for Rust. Because read_u32_into and read_u64_into mishandle certain buffer-length checks, a random number generator may be seeded with too little data.

References

Affected packages

Git / github.com/rust-random/rand

Affected ranges

Type
GIT
Repo
https://github.com/rust-random/rand
Events
Introduced
98e220c30234370fb04ba928799ebd9727fc049a
Fixed
3a03c9eb5350e03a3f540dba2ee34e0984f2c2c2
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:rand_core_project:rand_core:*:*:*:*:*:rust:*:*",
    "extracted_events": [
        {
            "introduced": "0.6.0"
        },
        {
            "fixed": "0.6.2"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

0.*
0.8.0
0.8.1
0.8.2
0.8.3
rand_chacha-0.*
rand_chacha-0.3.0
rand_core-0.*
rand_core-0.6.0
rand_core-0.6.1
rand_distr-0.*
rand_distr-0.4.0
rand_hc-0.*
rand_hc-0.3.0
rand_pcg-0.*
rand_pcg-0.3.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27378.json"