USN-5315-1: Ansible vulnerabilities
7 June 2022
Several security issues were fixed in Ansible.
Releases
Packages
- ansible - Configuration management, deployment, and task execution system
Details
It was discovered that Ansible did not properly manage directory
permissions when running playbooks with an unprivileged become user. A
local attacker could possibly use this issue to cause a race condition,
escalate privileges and execute arbitrary code. This issue only affected
Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2020-1733)
It was discovered that the fix to address CVE-2020-1733 in Ansible was
incomplete on systems using ACLs and FUSE filesystems. A local attacker
could possibly use this issue to cause a race condition, escalate
privileges and execute arbitrary code. This issue only affected
Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2020-10744)
It was discovered that Ansible did not properly manage multi-line YAML
strings and special template characters. A local attacker could possibly
use this issue to cause a template injection, resulting in the
disclosure of sensitive information or other unspecified impact.
(CVE-2021-3583)
It was discovered that the ansible-connection module in Ansible did
not properly manage certain error messages. A local attacker could
possibly use this issue to expose sensitive information. This issue
only affected Ubuntu 20.04 ESM and Ubuntu 22.04 ESM. (CVE-2021-3620)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.04
-
ansible
-
2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm1
Available with Ubuntu Pro
Ubuntu 20.04
-
ansible
-
2.9.6+dfsg-1ubuntu0.1~esm1
Available with Ubuntu Pro
Ubuntu 18.04
-
ansible
-
2.5.1+dfsg-1ubuntu0.1+esm1
Available with Ubuntu Pro
Ubuntu 16.04
-
ansible
-
2.0.0.2-2ubuntu1.3+esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.