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Developer demonstrates undefined behavior bug in C++ that grants unintended permissions

Author frames bug as illustrative but practically unlikely to exploit

1 Oct 31 5:40 PM · 11d ago · 1 article · 3 posts · 4 sources · development 1 of 1

The post explains the phenomenon as undefined behavior and notes the bug is not a practical security concern. The author argues it depends on specific conditions (matching string lengths, inlining, lack of refactoring) that would be eliminated by standard coding practices.

“Even though this is a funny example, I doubt a bug like this will surface in the wild (nor be easily exploited) as this behavior is incredibly hard to reproduce.”

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Peak 3 pieces in 3h at Oct 31, 5 PM; 5 pieces over 11 days (1 article · 4 posts) Oct 31, 5 PM — 3 pieces · 1 article · 2 posts — Hacker News 1, Newswires 1, Mastodon 1Oct 31, 8 PM — quietOct 31, 11 PM — quietNov 1, 1 AM — quietNov 1, 4 AM — quietNov 1, 7 AM — quietNov 1, 10 AM — 1 piece · 1 post — Lobsters 1Nov 1, 1 PM — quietNov 1, 4 PM — quietNov 1, 7 PM — quietNov 1, 10 PM — quietNov 2, 1 AM — quietNov 2, 4 AM — quietNov 2, 7 AM — quietNov 2, 10 AM — quietNov 2, 1 PM — quietNov 2, 4 PM — quietNov 2, 7 PM — quietNov 2, 10 PM — quietNov 3, 1 AM — quietNov 3, 4 AM — quietNov 3, 7 AM — quietNov 3, 10 AM — quietNov 3, 1 PM — 1 piece · 1 post — Hacker News 1Nov 3, 4 PM — quietNov 3, 7 PM — quietNov 3, 10 PM — quietNov 4, 1 AM — quietNov 4, 4 AM — quietNov 4, 7 AM — quietNov 4, 10 AM — quietNov 4, 1 PM — quietNov 4, 4 PM — quietNov 4, 7 PM — quietNov 4, 10 PM — quietNov 5, 1 AM — quietNov 5, 4 AM — quietNov 5, 7 AM — quietNov 5, 10 AM — quietNov 5, 1 PM — quietNov 5, 4 PM — quietNov 5, 7 PM — quietNov 5, 10 PM — quietNov 6, 1 AM — quietNov 6, 4 AM — quietNov 6, 7 AM — quietNov 6, 10 AM — quietNov 6, 1 PM — quietNov 6, 4 PM — quietNov 6, 7 PM — quietNov 6, 10 PM — quietNov 7, 1 AM — quietNov 7, 4 AM — quietNov 7, 7 AM — quietNov 7, 10 AM — quietNov 7, 1 PM — quietNov 7, 4 PM — quietNov 7, 7 PM — quietNov 7, 10 PM — quietNov 8, 1 AM — quietNov 8, 4 AM — quietNov 8, 7 AM — quietNov 8, 10 AM — quietNov 8, 1 PM — quietNov 8, 4 PM — quietNov 8, 7 PM — quietNov 8, 10 PM — quietNov 9, 1 AM — quietNov 9, 4 AM — quietNov 9, 7 AM — quietNov 9, 10 AM — quietNov 9, 1 PM — quietNov 9, 4 PM — quietNov 9, 7 PM — quietNov 9, 10 PM — quietNov 10, 1 AM — quietNov 10, 4 AM — quietNov 10, 7 AM — quietNov 10, 10 AM — quietNov 10, 1 PM — quietNov 10, 4 PM — quietNov 10, 7 PM — quietNov 10, 10 PM — quietYesterday, 1 AM — quietYesterday, 4 AM — quietYesterday, 7 AM — quietYesterday, 10 AM — quietYesterday, 1 PM — quietYesterday, 4 PM — quietYesterday, 7 PM — quietYesterday, 10 PM — quiet 1
1Author frames bug as illustrative but…
Nov 1Nov 2Nov 3Nov 4Nov 5Nov 6Nov 7Nov 8Nov 9Nov 10now · 12:29 AM ET

Reported in the same hours no headline names this development itself — these 1 claim were published in its stretch

  1. 1 outlet Spooky C++

    first by HN Frontpage, 11d ago

What people said 1 voice · verbatim

All 1 developments of Developer demonstrates undefined behavior bug in C++ that… →

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