Published: 07/06/2017 Updated: 03/10/2019
CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6
CVSS v3 Base Score: 8.1 | Impact Score: 5.9 | Exploitability Score: 2.2
VMScore: 605
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Summary

In ARM Trusted Firmware 1.3, RO memory is always executable at AArch64 Secure EL1, allowing malicious users 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).

Affected Products

Vendor Product Versions
ArmArm Trusted Firmware1.3