CVE-2021-37625
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 0.9% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.9% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.9% · EPSS, next 30 days
- Weakness
- CWE-252
- Record status
- Modified
Affected
- Skytable 0.1.0
- Skytable 0.2.0
- Skytable 0.3.0
- Skytable 0.3.1
- Skytable 0.3.2
- Skytable 0.4.0
- Skytable 0.4.1
- Skytable 0.4.2
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-37625.md and follow it. Check whether this project is affected by CVE-2021-37625. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d
- https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7
- https://security.skytable.io/ve/s/00002.html
- https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d
- https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7
- https://security.skytable.io/ve/s/00002.html
References
- https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d
- https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7
- https://security.skytable.io/ve/s/00002.html
- https://github.com/skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d
- https://github.com/skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7
- https://security.skytable.io/ve/s/00002.html