CVE-2021-4070

CVSS V2 Medium 6.4 CVSS V3 Critical 9.1

Description

Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0.

Overview

CVE ID
CVE-2021-4070

Assigner
security@huntr.dev

Vulnerability Status
Analyzed

Published Version
2022-02-23T20:15:09

Last Modified Date
2022-03-02T17:33:44

Weakness Enumerations

CWE	URL
CWE-193	http://cwe.mitre.org/data/definitions/193.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:v2fly:v2ray-core::::::::	1	OR		4.44.0

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:P/I:N/A:P

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
6.4

Severity
MEDIUM

Exploitability Score
10

Impact Score
4.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
9.1

Base Severity
CRITICAL

Exploitability Score
3.9

Impact Score
5.2

References

Reference URL	Reference Tags
https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877	Exploit Patch Third Party Advisory
https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c	Patch Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-4070
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4070

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 15:47:37				Added to TrackCVE
2022-12-06 10:33:56	2022-02-23T20:15Z	2022-02-23T20:15:09	CVE Published Date	updated
2022-12-06 10:33:56		2022-03-02T17:33:44	CVE Modified Date	updated
2022-12-06 10:33:56		Analyzed	Vulnerability Status	updated