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Ubuntu: USN-5628-1 (CVE-2020-15113): etcd vulnerabilities

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Ubuntu: USN-5628-1 (CVE-2020-15113): etcd vulnerabilities

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Published
08/05/2020
Created
09/26/2022
Added
09/23/2022
Modified
09/23/2022

Description

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).

Solution(s)

  • ubuntu-upgrade-etcd
  • ubuntu-upgrade-etcd-client
  • ubuntu-upgrade-etcd-server

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