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USN-5628-1: etcd vulnerabilities

22 September 2022

Several security issues were fixed in etcd.

Releases

Packages

  • etcd - Transitional package for etcd-client and etcd-server

Details

It was discovered that etcd incorrectly handled certain specially crafted
WAL files. An attacker could possibly use this issue to cause a denial of
service. (CVE-2020-15106, CVE-2020-15112)

It was discovered that etcd incorrectly handled directory permissions when
trying to create a directory that exists already. An attacker could
possibly use this issue to obtain sensitive information. (CVE-2020-15113)

It was discovered that etcd incorrectly handled endpoint setup. An
attacker could possibly use this issue to cause a denial of
service. (CVE-2020-15114)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04

In general, a standard system update will make all the necessary changes.