CVE-2018-5739 Failure to release memory may exhaust system resources
HighCVSS 7.5
EPSS 1.9%
- Published
- Updated
- Exploit status
- No public exploit known
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
| Product | Affected versions | Fixed in |
|---|---|---|
| isc Kea | = 1.4.0 | No fix listed |
| isc Kea DHCP | = Kea DHCP 1.4.0 | No fix listed |
References
- kb.isc.org vendor-advisory
- Debian Security Tracker CVE-2018-5739 vendor-advisory