CVE-2019-6293 - CVE House
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Status published Medium CVE-2019-6293

An issue was discovered in the function mark_beginning_as_normal in nfa.c...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2006-0459
flex.skl in Will Estes and John Millaway Fast Lexical Analyzer...
High 7.5

Affected Vendor

Affected Software

flex
Vulnerable Versions:
2.6.4

Timeline

Official Publish: January 15th, 2019
Last Modified: September 16th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.