Crash on malformed ELF file
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- Dominant language
- Rust
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Description
Attempting to decode any of the attached files with goblin::elf::Elf::parse crashes the process. Memory allocator runs out of virtual memory and the process is aborted.
Found via AFL.rs. Fuzzing harness: https://github.com/Shnatsel/goblin/blob/master/fuzz-afl/src/main.rs
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First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
Start with the AFL.rs harness in fuzz-afl/src/main.rs and reproduce the attached inputs through goblin:🧝:Elf::parse. Trace how malformed ELF data is handled and verify that these files no longer exhaust virtual memory or abort the process, while returning an appropriate parse result.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- reverse-engineering
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100