CBOR-to-JSON: Limit how deep we process nested containers#273
Merged
thiagomacieira merged 1 commit intointel:mainfrom Mar 11, 2025
Conversation
georgen117
approved these changes
Mar 11, 2025
1024 levels will probably be good enough for everyone, like cborparser.c. For those for whom it isn't, they can set the limit during the build. We already had this for the plain parser, so TinyCBOR wouldn't cause a stack overflow in case of a malformed stream (intentionally or not) when simply parsing and advancing over the stream. This same protection wasn't applied to the content converting from CBOR to JSON. Signed-off-by: Thiago Macieira <thiago.macieira@intel.com>
6e8c36a to
5945ac8
Compare
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
1024 levels will probably be good enough for everyone, like cborparser.c. For those for whom it isn't, they can set the limit during the build.
We already had this for the plain parser, so TinyCBOR wouldn't cause a stack overflow in case of a malformed stream (intentionally or not) when simply parsing and advancing over the stream. This same protection wasn't applied to the content converting from CBOR to JSON.