CVE-2017-7563
Last modified
CVE-2017-7563 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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).. EPSS estimates a 0.88% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Trustedfirmware | Trusted Firmware-A | <= 1.3 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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