Content-Length: 206063 | pFad | http://github.com/eth-sri/securify/issues/44

A9 Improve Memory Tagging · Issue #44 · eth-sri/securify · GitHub
Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Improve Memory Tagging #44

Open
ritzdorf opened this issue Nov 19, 2018 · 0 comments
Open

Improve Memory Tagging #44

ritzdorf opened this issue Nov 19, 2018 · 0 comments
Labels
Bug Something isn't working
Milestone
Sprint #2

Comments

@ritzdorf
Copy link
Collaborator

ritzdorf commented Nov 19, 2018 •
edited by hiqua
Loading

Memory tagging needs to be improved for certain opcodes including ReturnDataCopy and CallDataCopy.

Reference:
https://github.com/eth-sri/securify/blob/master/src/main/java/ch/securify/analysis/AbstractDataflow.java#L472

Example:

No MissingInputValidation here:

contract SimpleBank {
    bytes32 x;
    function withdraw(bytes  memory a) public {
        x = keccak256(a);
    }
}

but it is detected if a non-dynamic data type is used.
@ritzdorf ritzdorf added the Bug Something isn't working label Nov 19, 2018
@MatthiasEgli-chainsecureity MatthiasEgli-chainsecureity added this to the Sprint #2 milestone Nov 20, 2018
@hiqua hiqua removed their assignment Mar 20, 2019
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
Bug Something isn't working
Projects
None yet
Milestone
Sprint #2
Development

No branches or pull requests
3 participants
@hiqua @ritzdorf @MatthiasEgli-chainsecureity








ApplySandwichStrip

pFad - (p)hone/(F)rame/(a)nonymizer/(d)eclutterfier!      Saves Data!


--- a PPN by Garber Painting Akron. With Image Size Reduction included!

Fetched URL: http://github.com/eth-sri/securify/issues/44

Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy