CVE-2017-15031 Information disclosure in n/a

High 7.5 Published Updated

Failure to initialize the PMCR_EL0 register in ARM Trusted Firmware allows attackers to leak secure world timing information.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-15031?

CVE-2017-15031 is a high-severity vulnerability in n/a, published on 18 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In all versions of ARM Trusted Firmware up to and including v1.4, not initializing or saving/restoring the PMCR_EL0 register can leak secure world timing information.

Weakness: CWE-200

Which versions are affected by CVE-2017-15031?

It affects 1 product.

Products include Trustedfirmware Trusted Firmware-A.

How do I fix CVE-2017-15031?

Apply the vendor's patch.

Is CVE-2017-15031 being exploited?

There is no known exploitation of CVE-2017-15031 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2017-15031, GHSA-rmx5-9qww-3c2x.

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