Failure to release memory may exhaust system resources
Published Jan 16, 2019
7.5
HIGHCVSS 3.0
EPSS 1.89%
Description
An extension to hooks capabilities which debuted in Kea 1.4.0 introduced a memory leak for operators who are using certain hooks library facilities. In order to support multiple requests simultaneously, Kea 1.4 added a callout handle store but unfortunately the initial implementation of this store does not properly free memory in every case. Hooks which make use of query4 or query6 parameters in their callouts can leak memory, resulting in the eventual exhaustion of available memory and subsequent failure of the server process. Affects Kea DHCP 1.4.0.
Affected products
-
- Version Kea DHCP 1.4.0StatusaffectedConstraints-
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Upgrade to Kea 1.4.0-P1 or higher, available via https://www.isc.org/downloads.
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
1 other source (CVE.org) ▾
CVSS:3.0/AV:A/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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.89% (0.01891) | 78.83th | v5 (v2026.06.15) |
| Jun 23, 2026 | 1.88% (0.01876) | 76.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.97% (0.02966) | 85.41th | v5 (v2026.06.15) |
| Mar 30, 2025 | 3.27% (0.03270) | 86.02th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.02% (0.05018) | 82.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.27% (0.03270) | 86.32th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.15% (0.00146) | 51.03th | v3 (v2023.03.01) |
| May 20, 2024 | 0.15% (0.00146) | 50.40th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00287) | 67.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.29% (0.00287) | 63.88th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | 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 | v1 |
| Jan 6, 2022 | 0.42% (0.00416) | 9.79th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (1)
- https://kb.isc.org/docs/aa-01626 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://kb.isc.org/docs/aa-01626 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.