rand_core Crate up to 0.6.1 on Rust read_u32_into/read_u64_into entropy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in rand_core Crate up to 0.6.1 on Rust. This vulnerability affects the function read_u32_into/read_u64_into. Executing a manipulation can lead to entropy. This vulnerability is registered as CVE-2021-27378. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in rand_core Crate up to 0.6.1 on Rust (Rust Package) and classified as problematic. This vulnerability affects the function read_u32_into/read_u64_into. The manipulation with an unknown input leads to a entropy vulnerability. The CWE definition for the vulnerability is CWE-332. The lack of entropy available for, or used by, a Pseudo-Random Number Generator (PRNG) can be a stability and security threat. As an impact it is known to affect confidentiality.

The weakness was published 02/18/2021 as RUSTSEC-2021-0023. The advisory is shared for download at rustsec.org. This vulnerability was named CVE-2021-27378. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1600.001.

Upgrading to version 0.6.2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Entropy
CWE: CWE-332 / CWE-331 / CWE-330
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: rand_core Crate 0.6.2

Timelineinfo

02/18/2021 🔍
02/18/2021 +0 days 🔍
02/18/2021 +0 days 🔍
03/03/2021 +13 days 🔍

Sourcesinfo

Advisory: RUSTSEC-2021-0023
Status: Confirmed

CVE: CVE-2021-27378 (🔍)
GCVE (CVE): GCVE-0-2021-27378
GCVE (VulDB): GCVE-100-170140

Entryinfo

Created: 02/18/2021 08:18
Updated: 03/03/2021 11:23
Changes: 02/18/2021 08:18 (40), 03/03/2021 11:18 (5), 03/03/2021 11:23 (18)
Complete: 🔍
Cache ID: 216::103

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