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An issue was discovered in the function mark_beginning_as_normal in nfa.c in flex 2.6.4. There is a stack exhaustion problem caused by the mark_beginning_as_normal function making recursive calls to itself in certain scenarios involving lots of '*' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | No solution exists | May 15, 2025 | Jan 15, 2019 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jan 15, 2019 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Jan 15, 2019 |
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