Red Hat Security Advisory: Red Hat Ceph Storage 8.1 security, bug fix, and enhancement updates

Important

A flaw was found in python-certifi. Untrusted certificates from TrustCor have been found in the root certificates store.

CWE-345 - Insufficient Verification of Data Authenticity

A flaw was found in python-werkzeug. Browsers may allow "nameless" cookies like =value instead of key=value. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie for another subdomain. If a Werkzeug application is running next to a vulnerable or malicious subdomain that sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key.

CWE-20 - Improper Input Validation

A flaw was found in python-werkzeug. Werkzeug is multipart form data parser, that will parse an unlimited number of parts, including file parts. These parts can be a small amount of bytes, but each requires CPU time to parse, and may use more memory as Python data. If a request can be made to an endpoint that accesses request.data, request.form, request.files, or request.get_data(parse_form_data=False), it can cause unexpectedly high resource usage, allowing an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests, and if many concurrent requests are sent continuously, this can exhaust or kill all available workers.

CWE-770 - Allocation of Resources Without Limits or Throttling

A resource consumption flaw was found in python-werkzeug. If a specially crafted file is uploaded by a remote attacker, it may cause a denial of service.

CWE-407 - Inefficient Algorithmic Complexity

A flaw was found in Ceph. Certain misconfigurations of CORS rules in Ceph could result in a significantly large memory allocation. This issue can lead to RGW crashing and a denial of service from an authenticated user on the network.

CWE-20 - Improper Input Validation