This change by itself is useless, because the application has no way to
access or provide SessionStates to crypto/tls, but they will be provided
in following CLs.
For #60105
Change-Id: I8d5de79b1eda0a778420134cf6f346246a1bb296
Reviewed-on: https://go-review.googlesource.com/c/go/+/496818
Reviewed-by: Marten Seemann <martenseemann@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Ever since session ticket key rotation was introduced in CL 9072, we've
been including a prefix in every ticket to identify what key it's
encrypted with. It's a small privacy gain, but the cost of trial
decryptions is also small, especially since the first key is probably
the most frequently used.
Also reissue tickets on every resumption so that the next connection
can't be linked to all the previous ones. Again the privacy gain is
small but the performance cost is small and it comes with a reduction in
complexity.
For #60105
Change-Id: I852f297162d2b79a3d9bf61f6171e8ce94b2537a
Reviewed-on: https://go-review.googlesource.com/c/go/+/496817
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Message marshalling makes use of BytesOrPanic a lot, under the
assumption that it will never panic. This assumption was incorrect, and
specifically crafted handshakes could trigger panics. Rather than just
surgically replacing the usages of BytesOrPanic in paths that could
panic, replace all usages of it with proper error returns in case there
are other ways of triggering panics which we didn't find.
In one specific case, the tree routed by expandLabel, we replace the
usage of BytesOrPanic, but retain a panic. This function already
explicitly panicked elsewhere, and returning an error from it becomes
rather painful because it requires changing a large number of APIs.
The marshalling is unlikely to ever panic, as the inputs are all either
fixed length, or already limited to the sizes required. If it were to
panic, it'd likely only be during development. A close inspection shows
no paths for a user to cause a panic currently.
This patches ends up being rather large, since it requires routing
errors back through functions which previously had no error returns.
Where possible I've tried to use helpers that reduce the verbosity
of frequently repeated stanzas, and to make the diffs as minimal as
possible.
Thanks to Marten Seemann for reporting this issue.
Fixes#58001
Fixes CVE-2022-41724
Change-Id: Ieb55867ef0a3e1e867b33f09421932510cb58851
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1679436
Reviewed-by: Julie Qiu <julieqiu@google.com>
TryBot-Result: Security TryBots <security-trybots@go-security-trybots.iam.gserviceaccount.com>
Run-TryBot: Roland Shoemaker <bracewell@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/468125
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Michael Pratt <mpratt@google.com>
