| Name | CVE-2021-37698 |
| Description | Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions 2.5.0 through 2.13.0, ElasticsearchWriter, GelfWriter, InfluxdbWriter and Influxdb2Writer do not verify the server's certificate despite a certificate authority being specified. Icinga 2 instances which connect to any of the mentioned time series databases (TSDBs) using TLS over a spoofable infrastructure should immediately upgrade to version 2.13.1, 2.12.6, or 2.11.11 to patch the issue. Such instances should also change the credentials (if any) used by the TSDB writer feature to authenticate against the TSDB. There are no workarounds aside from upgrading. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2816-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| icinga2 (PTS) | jessie | 2.1.1-1 | vulnerable |
| stretch (security), stretch (lts), stretch | 2.6.0-2+deb9u2 | fixed | |
| buster | 2.10.3-2+deb10u1 | vulnerable | |
| bullseye | 2.12.3-1 | vulnerable | |
| bookworm | 2.13.6-2 | fixed | |
| sid, trixie | 2.14.2-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| icinga2 | source | stretch | 2.6.0-2+deb9u2 | DLA-2816-1 | ||
| icinga2 | source | (unstable) | 2.13.1-1 |
[bullseye] - icinga2 <no-dsa> (Minor issue)
[buster] - icinga2 <no-dsa> (Minor issue)
https://github.com/Icinga/icinga2/security/advisories/GHSA-cxfm-8j5v-5qr2
https://icinga.com/blog/2021/08/19/icinga-2-13-1-security-release/
https://github.com/Icinga/icinga2/commit/8910abc5882774c067dfc22cdf8bf8b830257608 (v2.12.6)
https://github.com/Icinga/icinga2/commit/bf535969ac23962b65b72ea3893c6b384e1d3218 (v2.12.6)
https://github.com/Icinga/icinga2/commit/d7133ae4298d133a088b25c9a71ffeb1f8164a8d (v2.12.6)
https://github.com/Icinga/icinga2/commit/6db8795ca4b6a853f49615279f068d4cf2b42087 (v2.12.6)
https://github.com/Icinga/icinga2/commit/b7dd909a30367a4b8389e9362f05a856bbd7b081 (v2.12.6)
[jessie] - icinga2 <no-dsa> (Minor issue)