| Name | CVE-2018-5739 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| isc-kea (PTS) | bookworm | 2.2.0-6 | fixed |
| trixie | 2.4.1-2 | fixed |
| sid | 2.4.1-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| isc-kea | source | (unstable) | (not affected) | | | |
Notes
- isc-kea <not-affected> (Vulnerable code introduced in Kea 1.4.0)
https://kb.isc.org/article/AA-01626
1.4.0-1 was uploaded to experimental as https://tracker.debian.org/news/973011
Tracking bug as #903729 with RC severity so this version does
not enter unstable without fix.