Cap the input size to the conf fuzzer

Trying to fix all the places where these formats go quadratic isn't a
good use of time. We've already documented that they're not safe for use
with untrusted inputs. Even without such DoS issues, they cannot be
safely used anyway. (E.g. RUSTSEC-2023-0023.)

Just cap the fuzzer input. It'd be nice if we could avoid this more
systematically in the function, but they're not structured to make this
easy to do, and anyone concerned about DoS in this function has worse
problems.

Bug: chromium:1444420, oss-fuzz:56048, 611
Change-Id: I53eeb346f59278ec2db3aac4a92573b927ed8003
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/59785
Reviewed-by: Bob Beck <bbe@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Auto-Submit: David Benjamin <davidben@google.com>
2 files changed
tree: fa6db2e29f9434d7e4a8996f702e45034140abeb
  1. .github/
  2. cmake/
  3. crypto/
  4. decrepit/
  5. fuzz/
  6. include/
  7. rust/
  8. ssl/
  9. third_party/
  10. tool/
  11. util/
  12. .clang-format
  13. .gitignore
  14. API-CONVENTIONS.md
  15. BREAKING-CHANGES.md
  16. BUILDING.md
  17. CMakeLists.txt
  18. codereview.settings
  19. CONTRIBUTING.md
  20. FUZZING.md
  21. go.mod
  22. go.sum
  23. INCORPORATING.md
  24. LICENSE
  25. PORTING.md
  26. README.md
  27. SANDBOXING.md
  28. sources.cmake
  29. STYLE.md
README.md

BoringSSL

BoringSSL is a fork of OpenSSL that is designed to meet Google's needs.

Although BoringSSL is an open source project, it is not intended for general use, as OpenSSL is. We don't recommend that third parties depend upon it. Doing so is likely to be frustrating because there are no guarantees of API or ABI stability.

Programs ship their own copies of BoringSSL when they use it and we update everything as needed when deciding to make API changes. This allows us to mostly avoid compromises in the name of compatibility. It works for us, but it may not work for you.

BoringSSL arose because Google used OpenSSL for many years in various ways and, over time, built up a large number of patches that were maintained while tracking upstream OpenSSL. As Google's product portfolio became more complex, more copies of OpenSSL sprung up and the effort involved in maintaining all these patches in multiple places was growing steadily.

Currently BoringSSL is the SSL library in Chrome/Chromium, Android (but it's not part of the NDK) and a number of other apps/programs.

Project links:

There are other files in this directory which might be helpful: