font: document (lack of) security hardening in font packages

Malicious images are in our threat model, but at this time
malicious fonts are not.

Change-Id: I3edbf8ee83c946d2530ec71abb6db3a06a6a6964
Reviewed-on: https://go-review.googlesource.com/c/image/+/795381
Reviewed-by: Nicholas Husin <nsh@golang.org>
Reviewed-by: Nicholas Husin <husin@google.com>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
3 files changed
tree: 6c7935a704e282aaf8ad6c343385e46243175db8
  1. bmp/
  2. ccitt/
  3. cmd/
  4. colornames/
  5. draw/
  6. example/
  7. font/
  8. internal/
  9. math/
  10. riff/
  11. testdata/
  12. tiff/
  13. vector/
  14. vp8/
  15. vp8l/
  16. webp/
  17. .gitattributes
  18. .gitignore
  19. codereview.cfg
  20. CONTRIBUTING.md
  21. go.mod
  22. go.sum
  23. LICENSE
  24. PATENTS
  25. README.md
README.md

Go Images

Go Reference

This repository holds supplementary Go image packages.

Security Considerations

The packages in this repository have the same security model as the standard library image package. Specifically, when operating on arbitrary images, DecodeConfig should be called before Decode, so that the program can decide whether the image, as defined in the returned header, can be safely decoded with the available resources. A call to Decode which produces an extremely large image, as defined in the header returned by DecodeConfig, is not considered a security issue, regardless of whether the image is itself malformed or not.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://go.dev/doc/contribute.

The git repository is https://go.googlesource.com/image.

The main issue tracker for the image repository is located at https://go.dev/issues. Prefix your issue with “x/image:” in the subject line, so it is easy to find.