In FreeBSD 11.x before 11.1-RELEASE and 10.x before 10.4-RELEASE, the qsort algorithm has a deterministic recursion pattern
Published Sep 12, 2018
7.5
HIGHCVSS 3.0
EPSS 1.16%
Description
In FreeBSD 11.x before 11.1-RELEASE and 10.x before 10.4-RELEASE, the qsort algorithm has a deterministic recursion pattern. Feeding a pathological input to the algorithm can lead to excessive stack usage and potential overflow. Applications that use qsort to handle large data set may crash if the input follows the pathological pattern.
Affected products
-
- Version 11.x before 11.1-RELEASE, 10.x before 10.4-RELEASEStatusaffectedConstraints-
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.16% (0.01162) | 66.02th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.16% (0.01162) | 65.78th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.35% (0.00347) | 71.97th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.35% (0.00347) | 70.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.45% (0.00450) | 71.13th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (1)
- https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt x_refsource_MISCExploitTechnical DescriptionThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt | x_refsource_MISCExploitTechnical DescriptionThird Party Advisory |
Change history (0)
No recorded changes yet.