CVE-2022-25304
High
Description
All versions of package opcua; all versions of package asyncua are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.
SeverityHigh
CVSS7.5
Exploit probability—
ProductAsyncua
PublishedAug 23, 2022
First seenAug 23, 2022
How to fix
Update
- asyncua0.9.96 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| asyncua_project asyncua | No range specified | — |
| opcua_project opcua | No range specified | — |
| asyncuaPyPI | v < 0.9.96 | 0.9.96 |
| opcuaPyPI | v ≤ 0.98.13 | — |
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