4.7

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2020-35886

GHSA ID

GHSA-c7fw-cr3w-wvfc

EPSS Score

0.12011%

CWE

CWE-362

Published

8/25/2021

Updated

6/13/2023

KEV Status

Technology

Rust

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

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CVE-2020-35886

CVE-2020-35886: Multiple security issues including data race, buffer overflow, and uninitialized memory drop in arr

arr crate contains multiple security issues. Specifically,

It incorrectly implements Sync/Send bounds, which allows to smuggle non-Sync/Send types across the thread boundary.
Index and IndexMut implementation does not check the array bound.
Array::new_from_template() drops uninitialized memory.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2020-35886

CVE-2020-35886:

4.7

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2020-35886

GHSA ID

GHSA-c7fw-cr3w-wvfc

EPSS Score

0.12011%

CWE

CWE-362

Published

8/25/2021

Updated

6/13/2023

KEV Status

Technology

Rust

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

Technical Details

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
arr	rust	<= 0.6.1

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

Sync/Send implementations are explicitly called out in CVE description and demonstrated via Rc smuggling. 2) OOB access is shown in PoC with arr[10]. 3) new_from_template's uninitialized drop is directly referenced in advisory. 4) Drop impl is implicated by memory leak/uninitialized drop issues in the PoC output. All vulnerabilities are demonstrated in the GitHub issue's test code and map directly to specific trait implementations mentioned in advisory descriptions.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

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Reasoning

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4.7

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2020-35886: Multiple security issues including data race, buffer overflow, and uninitialized memory drop in arr

CVE-2020-35886:

4.7

-

Basic Information

Basic Information

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability IntelligenceMiggo AI

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Technical Details

4.7

4.7

CVE-2020-35886: Multiple security issues including data race, buffer overflow, and uninitialized memory drop in arr

Basic Information

Basic Information

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI