flex.skl in Will Estes and John Millaway Fast Lexical Analyzer Generator (flex) before 2.5.33 does not allocate enough memory for grammars containing (1) REJECT statements or (2) trailing context rules, which causes flex to generate code that contains a buffer overflow that might allow context-dependent attackers to execute arbitrary code.
CVSS Details
- CVSS 3.1 Base Score: 7.3
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade flex | Jul 30, 2024 | Mar 29, 2006 |
| Gentoo Linux | — | Upgrade sys-devel/flex. | Oct 30, 2017 | Mar 29, 2006 |
| Ubuntu | — | Upgrade flex | Nov 8, 2024 | Mar 29, 2006 |
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