Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-37625

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
05/08/2021
Last modified:
12/08/2021

Description

Skytable is an open source NoSQL database. In versions prior to 0.6.4 an incorrect check of return value of the accept function in the run-loop for a TCP socket/TLS socket/TCP+TLS multi-socket causes an early exit from the run loop that should continue infinitely unless terminated by a local user, effectively causing the whole database server to shut down. This has severe impact and can be used to easily cause DoS attacks without the need to use much bandwidth. The attack vectors include using an incomplete TLS connection for example by not providing the certificate for the connection and using a specially crafted TCP packet that triggers the application layer backoff algorithm.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:skytable:skytable:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.3.1:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.3.2:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.4.2:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.4.3:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.4.4:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.4.5:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.5.1:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.5.2:*:*:*:*:*:*:*
cpe:2.3:a:skytable:skytable:0.6.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools