Debian Security Advisory

DLA-1923-1 ansible -- LTS security update

Date Reported:
16 Sep 2019
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 930065.
In Mitre's CVE dictionary: CVE-2015-3908, CVE-2015-6240, CVE-2018-10875, CVE-2019-10156.
More information:

Several vulnerabilities were discovered in Ansible, a configuration management, deployment, and task execution system.

  • CVE-2015-3908

    A potential man-in-the-middle attack associated with insusfficient X.509 certificate verification. Ansible did not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

  • CVE-2015-6240

    A symlink attack that allows local users to escape a restricted environment (chroot or jail) via a symlink attack.

  • CVE-2018-10875

    A fix potential arbitrary code execution resulting from reading ansible.cfg from a world-writable current working directory. This condition now causes ansible to emit a warning and ignore the ansible.cfg in the world-writable current working directory.

  • CVE-2019-10156

    Information disclosure through unexpected variable substitution.

For Debian 8 Jessie, these problems have been fixed in version 1.7.2+dfsg-2+deb8u2.

We recommend that you upgrade your ansible packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: