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[email protected]CVE-2022-29223

HistoryMay 24, 2022 - 3:15 p.m.

CVE-2022-29223

2022-05-2415:15:07

CWE-120

[email protected]

web.nvd.nist.gov

azure rtos usbx

cve-2022-29223

buffer overflow

usb host stack

security vulnerability

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.5 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

69.8%

JSON

Azure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack. In versions prior to 6.1.10, an attacker can cause a buffer overflow by providing the Azure RTOS USBX host stack a HUB descriptor with bNbPorts set to a value greater than UX_MAX_TT which defaults to 8. For a bNbPorts value of 255, the implementation of ux_host_class_hub_descriptor_get function will modify the contents of hub -> ux_host_class_hub_device -> ux_device_hub_tt array violating the end boundary by 255 - UX_MAX_TT items. The USB host stack needs to validate the number of ports reported by the hub, and if the value is larger than UX_MAX_TT, USB stack needs to reject the request. This fix has been included in USBX release 6.1.10.

Affected configurations

Vulners

NVD

Node

azure-rtosusbxRange<6.1.10

CPENameOperatorVersion
microsoft:azure_rtos_usbxmicrosoft azure rtos usbxlt6.1.10

CPE	Name	Operator	Version
microsoft:azure_rtos_usbx	microsoft azure rtos usbx	lt	6.1.10

CNA Affected

[
  {
    "product": "usbx",
    "vendor": "azure-rtos",
    "versions": [
      {
        "status": "affected",
        "version": "< 6.1.10"
      }
    ]
  }
]

References

github.com/azure-rtos/usbx/releases/tag/v6.1.10_rel

github.com/azure-rtos/usbx/security/advisories/GHSA-2qc5-385m-x862

Social References

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.5 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

69.8%

JSON

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