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Date: September 25, 2020

Affected versions of this crate did not properly check and cap the growth of the outgoing buffer. This allows a remote attacker to take down the process by growing the buffer of their (single) connection until the process runs out of memory it can allocate and is killed. The flaw was corrected in the parity-ws fork (>0.10.0) by disconnecting a client when the buffer runs full.

Language: RUST

Severity Score

Severity Score

Top Fix


Upgrade Version

No fix version available

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privilegs Required (PR): NONE
User Interaction (UI): NONE
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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