Reachable Assertion Affecting h2o/h2o package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published13 Oct 2024
- disclosed11 Oct 2024
- creditUnknown
Introduced: 11 Oct 2024
CVE-2024-45403 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Reachable Assertion when the server is configured as a reverse proxy and client-initiated cancellations of HTTP/3 requests occur. An attacker can cause the server to crash by sending specially crafted cancellation requests.
Note: This vulnerability has been fixed since commit 1ed32b2
Workaround
To mitigate this issue, users can disable the use of HTTP/3.
To do so, remove or comment out the listen directives using the quic type or attribute.