Vector35 / Vector35/binaryninja-api

Improve handling of malformed / dsc_extractor.bundle-processed binaries

Open
#5,596 2 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Component: Objective-C Workflow
Dominant language
C++
Stars
1.3k
Forks
298
Avg merge
5d 5h
Merged PRs (30d)
19

Description

Hi,

I have found that these https://github.com/Vector35/workflow_objc/blob/master/Core/AnalysisProvider.cpp#L22-L23 two analyzers raise out-of-bound exceptions.

Used LaunchServices binary extracted using https://github.com/keith/dyld-shared-cache-extractor from arm64 cache.

Will dig into it tomorrow and update the ticket.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in Core/AnalysisProvider.cpp at lines 22–23 and reproduce the issue with a LaunchServices binary extracted from an arm64 cache using dyld-shared-cache-extractor. Determine which two analyzers raise out-of-bound exceptions for the malformed or dsc_extractor.bundle-processed binary. Done means the affected binary no longer triggers those exceptions.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
reverse-engineering
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.