commit 5a8cdec3f8617920f19e3ab7707233ad3f02424f
Author: Isis Lovecruft <i...@torproject.org>
Date: Tue Apr 3 19:19:40 2018 +0000
changes: Add changes file for #24031.
---
changes/bug24031 | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/changes/bug24031 b/changes/bug24031
new file mode 100644
index 000000000..adffa46d8
--- /dev/null
+++ b/changes/bug24031
@@ -0,0 +1,13 @@
+ o Major bugfixes (protover, voting):
+ - Revise Rust implementation of protover to use a more memory-efficient
+ voting algorithm and corresponding data structures, thus avoiding a
+ potential (but small impact) DoS attack where specially crafted protocol
+ strings would expand to several potential megabytes in memory. In the
+ process, several portions of code were revised to be methods on new,
+ custom types, rather than functions taking interchangeable types, thus
+ increasing type safety of the module. Custom error types and handling
+ were added as well, in order to facilitate better error
dismissal/handling
+ in outside crates and avoid mistakenly passing an internal error string
to
+ C over the FFI boundary. Many tests were added, and some previous
+ differences between the C and Rust implementations have been
+ remedied. Fixes 24031; bugfix on 0.3.3.1-alpha.
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