SB2018081502 - Information disclosure in Intel CPUs

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Side-channel attack (CVE-ID: CVE-2018-3615)

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists due to an error in systems with microprocessors utilizing speculative execution and Intel® software guard extensions (Intel® SGX). A local attacker can conduct side-channel attack and gain access to potentially sensitive information residing in the L1 data cache from an enclave.

2) Side-channel attack (CVE-ID: CVE-2018-3620)

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists due to an error in systems with microprocessors utilizing speculative execution and address translations . A local attacker can trigger terminal page fault, conduct side-channel attack and gain access to potentially sensitive information residing in the L1 data cache.

3) Side-channel attack (CVE-ID: CVE-2018-3646)

The vulnerability allows an adjacent attacker to obtain potentially sensitive information.

The vulnerability exists due to an error in systems with microprocessors utilizing speculative execution and address translations. An adjacent attacker with guest OS privilege can trigger terminal page fault, conduct side-channel attack and gain access to potentially sensitive information residing in the L1 data cache.

Remediation

Install update from vendor's website.

References

• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00161.html