Impact
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
- Using a specially crafted TCP packet that triggers the application layer backoff algorithm
Patches
Hotfix released at: https://dl.skytable.io/security/v0.6.4 and announced through social channels. Public patch not disclosed yet.
Workarounds
None.
References
VE/S/00002
For more information
If you have any questions or comments about this advisory:
ohsayan Analyst
martinmolin Analyst
Impact
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:
Patches
Hotfix released at: https://dl.skytable.io/security/v0.6.4 and announced through social channels. Public patch not disclosed yet.
Workarounds
None.
References
VE/S/00002
For more information
If you have any questions or comments about this advisory: