VDB
CVE-2019-6293
CVE-2019-6293
PUBLISHED
CVSS 5.5 MEDIUM
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.
EPSS 1.60% · 74.8th percentile
Risk Scores
CVSS 3.0
5.5
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score
1.60%
74.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | flex | 2.6.4-5, 0, 2.6.4-3 |
| Ubuntu:22.04:LTS | flex | 0, 2.6.4-8build1, 2.6.4-8build2 |
| Ubuntu:16.04:LTS | flex | 2.6.0-4, 2.6.0-7, 2.6.0-11 |
| Ubuntu:25.10 | flex | 2.6.4-8.2build1, 0 |
| Ubuntu:24.04:LTS | flex | 2.6.4-8.2, 0, 2.6.4-8.2build1 |
| Ubuntu:20.04:LTS | flex | 2.6.4-6.2, 0 |
Timeline
- Jan 15, 2019 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 27, 2021 EPSS Score
- Dec 29, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 2, 2022 EPSS Score
- May 4, 2022 EPSS Score
- Sep 8, 2022 EPSS Score
- Nov 10, 2022 EPSS Score
- Mar 7, 2023 EPSS Score
- Mar 16, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-6293 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-6293 third-party-advisory