etcd: In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory...
CVE-2020-15113 is fixed in 4 products on 1 platform, first by etcd 3.2.17+dfsg-1ubuntu0.1~esm1, released August 6, 2020. It is not reported as exploited. Patch Radar priority: Routine.
In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| etcd · Ubuntu 18.04.6 LTS (bionic) | 3.2.17+dfsg-1ubuntu0.1~esm1 | etcd 3.2.17+dfsg-1ubuntu0.1~esm1 | Aug 6, 2020 |
| etcd · Ubuntu 20.04 LTS (focal) | 3.2.26+dfsg-6ubuntu0.1 | etcd 3.2.26+dfsg-6ubuntu0.1 | Aug 6, 2020 |
| etcd-client · Ubuntu 18.04.6 LTS (bionic) | 3.2.17+dfsg-1ubuntu0.1~esm1 | etcd-client 3.2.17+dfsg-1ubuntu0.1~esm1 | Aug 6, 2020 |
| etcd-client · Ubuntu 20.04 LTS (focal) | 3.2.26+dfsg-6ubuntu0.1 | etcd-client 3.2.26+dfsg-6ubuntu0.1 | Aug 6, 2020 |
| etcd-server · Ubuntu 18.04.6 LTS (bionic) | 3.2.17+dfsg-1ubuntu0.1~esm1 | etcd-server 3.2.17+dfsg-1ubuntu0.1~esm1 | Aug 6, 2020 |
| etcd-server · Ubuntu 20.04 LTS (focal) | 3.2.26+dfsg-6ubuntu0.1 | etcd-server 3.2.26+dfsg-6ubuntu0.1 | Aug 6, 2020 |
| golang-etcd-server-dev · Ubuntu 18.04.6 LTS (bionic) | 3.2.17+dfsg-1ubuntu0.1~esm1 | golang-etcd-server-dev 3.2.17+dfsg-1ubuntu0.1~esm1 | Aug 6, 2020 |
| golang-etcd-server-dev · Ubuntu 20.04 LTS (focal) | 3.2.26+dfsg-6ubuntu0.1 | golang-etcd-server-dev 3.2.26+dfsg-6ubuntu0.1 | Aug 6, 2020 |
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