CVE-2017-7563

In ARM Trusted Firmware 1.3, RO memory is always executable at AArch64 Secure EL1, allowing attackers to bypass the MT_EXECUTE_NEVER protection mechanism. This issue occurs because of inconsistency in the number of execute-never bits (one bit versus two bits).

CVSS v3 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/ARM-software/arm-trusted-firmware/wiki/ARM-Trusted-Firmware-Security-Advisory-TFV-3	Third Party Advisory
https://github.com/ARM-software/arm-trusted-firmware/wiki/ARM-Trusted-Firmware-Security-Advisory-TFV-3	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:trustedfirmware:trusted_firmware-a:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2017-06-07 15:29

Updated : 2026-06-17 01:24

NVD link : CVE-2017-7563

Mitre link : CVE-2017-7563

CVE.ORG link : CVE-2017-7563

JSON object : View

Products Affected

trustedfirmware

trusted_firmware-a

CWE

CWE-732

Incorrect Permission Assignment for Critical Resource

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