Execution Memory Bypass Vulnerability in ARM Trusted Firmware
CVE-2017-7563
8.1HIGH
Summary
In ARM Trusted Firmware 1.3, a vulnerability exists where read-only (RO) memory can be executed at AArch64 Secure Exception Level 1. This flaw enables attackers to circumvent the MT_EXECUTE_NEVER protection mechanism due to inconsistency in the implementation of execute-never bits, compromising the integrity of memory access controls.
References
CVSS V3.1
Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved