Denial of Service (DoS) Affecting azure-rtos/usbx package, versions [,6.1.12)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.29% (53rd percentile)

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  • Snyk IDSNYK-UNMANAGED-AZURERTOSUSBX-3042393
  • published11 Oct 2022
  • disclosed11 Oct 2022
  • creditUnknown

Introduced: 11 Oct 2022

CVE-2022-36063  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade azure-rtos/usbx to version 6.1.12 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS) in the _ux_host_class_cdc_ecm_mac_address_get() function in ux_host_class_cdc_ecm_mac_address_get.c. An attacker who can set a mac address string descriptor length to 0 or 1 can trigger an integer underflow followed by a buffer overflow. In addition to denial of service, this could allow code execution flow redirection.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

  • High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

  • Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package

CVSS Base Scores

version 3.1