CVE-2021-42074

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
An issue was discovered in Barrier before 2.3.4. An unauthenticated attacker can cause a segmentation fault in the barriers component (aka the server-side implementation of Barrier) by quickly opening and closing TCP connections while sending a Hello message for each TCP session.
Overview
  • CVE ID
  • CVE-2021-42074
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-11-08T04:15:08
  • Last Modified Date
  • 2021-11-09T22:00:27
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:barrier_project:barrier:*:*:*:*:*:*:*:* 1 OR 2.3.4
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://www.openwall.com/lists/oss-security/2021/11/02/4 Exploit Mailing List Third Party Advisory
https://github.com/debauchee/barrier/releases/tag/v2.3.4 Release Notes Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-42074
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42074
History
Created Old Value New Value Data Type Notes
2022-05-10 06:47:43 Added to TrackCVE
2022-12-05 14:00:55 2021-11-08T04:15Z 2021-11-08T04:15:08 CVE Published Date updated
2022-12-05 14:00:55 2021-11-09T22:00:27 CVE Modified Date updated
2022-12-05 14:00:55 Analyzed Vulnerability Status updated