CVE-2019-6293
Severity Score
5.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se ha descubierto un problema en la función mark_beginning_as_normal en nfa.c en la versión 2.6.4 de flex. Hay un problema de agotamiento de pila causado por la función mark_beginning_as_normal, haciendo llamadas recursivas a sí misma en ciertos casos que implican el uso frecuente de caracteres '*'. Atacantes remotos pueden explotar esta vulnerabilidad para provocar una denegación de servicio.
*Credits:
N/A
CVSS Scores
Attack Vector
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Privileges Required
User Interaction
Scope
Confidentiality
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Attack Vector
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Authentication
Confidentiality
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* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-01-14 CVE Reserved
- 2019-01-15 CVE Published
- 2024-09-16 CVE Updated
- 2024-09-16 First Exploit
- 2024-09-17 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-674: Uncontrolled Recursion
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/westes/flex/issues/414 | 2024-09-16 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
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