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fix(http2): pass proper value to h2 max_local_error_reset_streams #3782

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magurotuna
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The patch #3528 added the ability for hyper users to configure max_local_error_reset_streams via the server builder to hyper v0.14.29. It was then pulled in to hyper v1.2.0 as well in #3530, where the wrong parameter max_pending_accept_reset_streams is passed to h2's builder as max_local_error_reset_streams.

This could lead to significant impact especially when a hyper user does not set max_pending_accept_reset_streams, because its default value is None and passing None to h2's max_local_error_reset_streams method will make the server vulnerable to DOS attacks.

This issue has been fixed in this patch, simply by passing the correct value to the h2's builder method.

Note that the original patch merged into v0.14 does not suffer this problem.

The patch hyperium#3528 added the ability for hyper users to configure
`max_local_error_reset_streams` via the server builder to hyper
v0.14.29. It was then pulled in to hyper v1.2.0 as well in hyperium#3530, where
the wrong parameter `max_pending_accept_reset_streams` is passed to h2's
builder as `max_local_error_reset_streams`.

This could lead to significant impact especially when a hyper user does
not set `max_pending_accept_reset_streams`, because its default value is
`None` and passing `None` to h2's `max_local_error_reset_streams` method
will make the server vulnerable to DOS attacks.

This issue has been fixed in this patch, simply by passing the correct
value to the h2's builder method.
@magurotuna magurotuna changed the title fix(http2): pass proper value to h2 max_local_error_reset_streams fix(http2): pass proper value to h2 max_local_error_reset_streams Nov 14, 2024
@magurotuna
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Looks like the hashbrown crate was recently released which bumped MSRV to 1.65.0. Do we want to bump our MSRV too?

@seanmonstar
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Do we want to bump our MSRV too?

Nah, in our MSRV job, we pin dependencies to a version that works with it. There's a couple others in the CI.yml file.

@seanmonstar
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I fixed the MSRV failure in #3783

@seanmonstar seanmonstar merged commit 4a20147 into hyperium:master Nov 15, 2024
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2 participants