CVE Vulnerabilities

CVE-2021-3531

Reachable Assertion

Published: May 18, 2021 | Modified: Nov 07, 2023
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
5.3 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM

A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21. When processing a GET Request for a swift URL that ends with two slashes it can cause the rgw to crash, resulting in a denial of service. The greatest threat to the system is of availability.

Weakness

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

Affected Software

Name Vendor Start Version End Version
Ceph Redhat * 14.2.21 (excluding)
Ceph_storage Redhat 4.0 (including) 4.0 (including)
Red Hat Ceph Storage 5.1 RedHat ceph-2:16.2.7-98.el8cp *
Ceph Ubuntu bionic *
Ceph Ubuntu devel *
Ceph Ubuntu esm-infra-legacy/trusty *
Ceph Ubuntu esm-infra/xenial *
Ceph Ubuntu focal *
Ceph Ubuntu groovy *
Ceph Ubuntu hirsute *
Ceph Ubuntu impish *
Ceph Ubuntu jammy *
Ceph Ubuntu kinetic *
Ceph Ubuntu lunar *
Ceph Ubuntu mantic *
Ceph Ubuntu noble *
Ceph Ubuntu oracular *
Ceph Ubuntu precise/esm *
Ceph Ubuntu trusty *
Ceph Ubuntu trusty/esm *
Ceph Ubuntu upstream *
Ceph Ubuntu xenial *

Extended Description

While assertion is good for catching logic errors and reducing the chances of reaching more serious vulnerability conditions, it can still lead to a denial of service. For example, if a server handles multiple simultaneous connections, and an assert() occurs in one single connection that causes all other connections to be dropped, this is a reachable assertion that leads to a denial of service.

Potential Mitigations

References