Vulnerability Details : CVE-2021-37625
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.
Vulnerability category: Denial of service
Products affected by CVE-2021-37625
- 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:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-37625
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-37625
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2021-37625
-
The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
-
The product incorrectly checks a return value from a function, which prevents it from detecting errors or exceptional conditions.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2021-37625
-
https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d
Ignore errors in run loop · skytable/skytable@bb19d02 · GitHubPatch;Third Party Advisory
-
https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7
Incorrect Check of Function Return Value in Skytable · Advisory · skytable/skytable · GitHubThird Party Advisory
-
https://security.skytable.io/ve/s/00002.html
Advisory VE/S/00002 for SkytablePatch;Vendor Advisory
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