Description (CNA)
AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. Prior to 4.14.2, AnyIO starts process-pool workers with standard error connected to a pipe that the parent never drains, even though the documented behavior redirects all three standard streams. Worker code that writes enough attacker-influenced data to sys.stderr can fill the pipe and block before returning the standard-output protocol response, causing the awaiting process-pool call to remain blocked indefinitely. Applications that run untrusted or faulty worker code capable of producing substantial standard-error output are affected. This issue is fixed in version 4.14.2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| agronholm / anyio | affected < 4.14.2 |
CWE
CWE-770
References
- https://github.com/agronholm/anyio/security/advisories/GHSA-5p39-cfhj-2xmp
- https://github.com/agronholm/anyio/pull/1207
- https://github.com/agronholm/anyio/commit/f1b7301c8264b0d2e8d24a5788fd29e93dea4040
- https://github.com/agronholm/anyio/releases/tag/4.14.2
ADP enrichment
No English description supplied.
No references supplied.