CVE-2021-37625
Skytable TCP/TLS Re-Entry Denial of Service
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.
INFO
Published Date :
Aug. 5, 2021, 6:15 p.m.
Last Modified :
Nov. 21, 2024, 6:15 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-37625.
| URL | Resource |
|---|---|
| https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d | Patch Third Party Advisory |
| https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7 | Third Party Advisory |
| https://security.skytable.io/ve/s/00002.html | Patch Vendor Advisory |
| https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d | Patch Third Party Advisory |
| https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7 | Third Party Advisory |
| https://security.skytable.io/ve/s/00002.html | Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-37625 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-37625
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-37625 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-37625 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d Added Reference https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7 Added Reference https://security.skytable.io/ve/s/00002.html -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 12, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d No Types Assigned https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d Patch, Third Party Advisory Changed Reference Type https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7 No Types Assigned https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7 Third Party Advisory Changed Reference Type https://security.skytable.io/ve/s/00002.html No Types Assigned https://security.skytable.io/ve/s/00002.html Patch, Vendor Advisory Added CWE NIST CWE-252 Added CPE Configuration OR *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:*:*:*:*:*:*:* *cpe:2.3:a:skytable:skytable:0.6.1:*:*:*:*:*:*:* *cpe:2.3:a:skytable:skytable:0.6.2:*:*:*:*:*:*:* *cpe:2.3:a:skytable:skytable:0.6.3:*:*:*:*:*:*:*
Vulnerability Scoring Details
Base CVSS Score: 7.5
Base CVSS Score: 5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} -0.01%
score
0.17929
percentile