CVE-2020-10697

A flaw was found in Ansible Tower when running Openshift. Tower runs a memcached, which is accessed via TCP. An attacker can take advantage of writing a playbook polluting this cache, causing a denial of service attack. This attack would not completely stop the service, but in the worst-case scenario, it can reduce the Tower performance, for which memcached is designed. Theoretically, more sophisticated attacks can be performed by manipulating and crafting the cache, as Tower relies on memcached as a place to pull out setting values. Confidential and sensitive data stored in memcached should not be pulled, as this information is encrypted. This flaw affects Ansible Tower versions before 3.6.4, Ansible Tower versions before 3.5.6 and Ansible Tower versions before 3.4.6.

• CWE-862

• https://bugzilla.redhat.com/show_bug.cgi?id=1818445Issue Tracking, Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1818445Issue Tracking, Vendor Advisory

Published

May 27, 2021

Last Modified

Jun 17, 2026

Status

Modified

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