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CVE-2021-37625— Incorrect Check of Function Return Value in Skytable

Quick assessment

Affected
skytable skytable
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Skytable是开源的一个具有自动快照和TLS的NosQL数据库。 Skytable 0.6.4 之前的版本中存在安全漏洞，攻击者可利用该漏洞触发DoS 攻击。

CVSS 7.5 · High EPSS 0.94% · P58

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-37625

Vulnerability Information
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Vulnerability Title
Incorrect Check of Function Return Value in Skytable
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加检查的返回值
Source: CVE Program / CVE List V5
Vulnerability Title
Skytable 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Skytable是开源的一个具有自动快照和TLS的NosQL数据库。 Skytable 0.6.4 之前的版本中存在安全漏洞，攻击者可利用该漏洞触发DoS 攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
skytable skytable < 0.6.4 -

II. Public POCs for CVE-2021-37625

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III. Intelligence Information for CVE-2021-37625

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Patches & Fixes for CVE-2021-37625 (1)

Vendor Advisories for CVE-2021-37625 (1)

Other References for CVE-2021-37625 (1)

IV. Related Vulnerabilities

Same product: skytable
Same vendor: skytable
Same weakness: CWE-252

V. Comments for CVE-2021-37625

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