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Vulnerability CVE-2017-7563
Published: 2017-06-07
| Description: |
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). |
Type:
CWE-732
CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)
| CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
6.8/10 |
6.4/10 |
8.6/10 |
| Exploit range |
Attack complexity |
Authentication |
Remote |
Medium |
No required |
| Confidentiality impact |
Integrity impact |
Availability impact |
Partial |
Partial |
Partial |
References: |
https://github.com/ARM-software/arm-trusted-firmware/wiki/ARM-Trusted-Firmware-Security-Advisory-TFV-3
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