Http4s Ember HTTP/2: unbounded inbound body buffering
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| http4s | http4s | affected |
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| Source | ID | Title |
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Github GHSA |
GHSA-6m4x-pp6q-5jmm | Http4s Ember HTTP/2: unbounded inbound body buffering |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.630% probability within 30 days)
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| First Time appeared |
Http4s
Http4s http4s |
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| Vendors & Products |
Http4s
Http4s http4s |
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| Metrics |
ssvc
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| Description | Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, Ember’s HTTP/2 flow-control window is replenished according to bytes received from the network rather than bytes consumed by the application, while each stream stores DATA in an unbounded channel. A hostile peer can therefore send a body faster than a slow or non-draining application consumes it, retaining payloads in heap on an ember-server or ember-client configured with withHttp2. The patch bounds the per-stream H2Connection body channel so application consumption applies backpressure. This issue is fixed in versions 0.23.35 and 1.0.0-M47. | |
| Title | Http4s Ember HTTP/2: unbounded inbound body buffering | |
| Weaknesses | CWE-400 CWE-770 |
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| References |
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| Metrics |
cvssV3_1
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