CVE-2020-10697

MEDIUM
4.4
CVSS Score
Published: May 27, 2021 at 06:45 PM UTC
Updated: June 17, 2026 at 02:48 AM UTC
1 product affected across 1 vendorAnsible Tower

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.4.63.5.0 ≤ v < 3.5.63.6.0 ≤ v < 3.6.4ansible_tower 3.6.4, ansible_tower 3.5.6, ansible_tower 3.4.6
Affected range stops below 3.4.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.5.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.6.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_MISCIssue TrackingVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1818445

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-862NVD-CWE-Other

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