Fix format string and buffer overflow vulnerabilities #12
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Outdated suggestions cannot be applied.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.
DMitry has multiple externally-controlled format string vulnerabilities and stack-based buffer overflows. The format string vulnerabilities are assigned CVE-2024-31837, and the buffer overflows appear to be related to CVE-2017-7938.
Format String reproducers:
Information disclosure:
./dmitry -i "8.8.8.8 %p"
Denial of service:
./dmitry -i "8.8.8.8 %s %s %s"
Buffer overflow reproducers:
./dmitry 8.8.8.8 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
./dmitry google.com 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890