Executive Summary

Informations
Name CVE-2021-3716 First vendor Publication 2022-03-02
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Overall CVSS Score 3.1
Base Score 3.1 Environmental Score 3.1
impact SubScore 1.4 Temporal Score 3.1
Exploitabality Sub Score 1.6
 
Attack Vector Network Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:S/C:N/I:N/A:P)
Cvss Base Score 3.5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3716

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2

Sources (Detail)

https://bugzilla.redhat.com/show_bug.cgi?id=1994695
https://gitlab.com/nbdkit/nbdkit/-/commit/09a13dafb7bb3a38ab52eb5501cba786365...
https://gitlab.com/nbdkit/nbdkit/-/commit/6c5faac6a37077cf2366388a80862bb0061...
https://listman.redhat.com/archives/libguestfs/2021-August/msg00083.html
https://www.openwall.com/lists/oss-security/2021/08/18/2
Source Url

Alert History

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Date Informations
2024-11-28 13:59:13
  • Multiple Updates
2023-07-08 00:28:23
  • Multiple Updates
2022-03-10 00:22:55
  • Multiple Updates
2022-03-03 17:22:58
  • Multiple Updates
2022-03-03 05:22:56
  • First insertion