CVE-2017-7563 Security feature bypass in n/a
Attackers can bypass MT_EXECUTE_NEVER protection in ARM Trusted Firmware due to inconsistent execute-never bit handling, compromising secure memory integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-7563?
CVE-2017-7563 is a high-severity vulnerability in n/a, published on 7 Jun 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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).
Weakness: CWE-732
Which versions are affected by CVE-2017-7563?
It affects 1 product.
Products include Trustedfirmware Trusted Firmware-A.
How do I fix CVE-2017-7563?
No fix has been published for CVE-2017-7563 yet. Limit exposure of the affected software until one is available.
Is CVE-2017-7563 being exploited?
There is no known exploitation of CVE-2017-7563 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-26gw-4gmp-qgf3.