CVE-2021-33478

The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins.

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-brcm-mxc-jul2021-26LqUZUh	Vendor Advisory

Configuration 1

cpe:2.3:o:cisco:ip_phone_8800_series_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8861_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8811_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8841_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8851_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8865_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8845_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8800_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8811_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8841_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8845_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8851_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8861_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:wireless_ip_phone_8821_firmware:*:*:*:*:*:*:*:*

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Published : 2021-07-22 05:15

Updated : 2021-08-02 03:38

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NVD link : CVE-2021-33478

Mitre link : CVE-2021-33478

No products.

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer