SB2018110602 - Information disclosure in Intel processors
Published: November 6, 2018
Security Bulletin ID
SB2018110602
Severity
Low
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Side-channel attack (CVE-ID: CVE-2018-5407)
The vulnerability allows a physical attacker to obtain potentially sensitive information.
The vulnerability exists due to due to execution of engine sharing on SMT (e.g.Hyper-Threading) architectures when improper handling of information by the processor. A physical attacker can construct a timing side channel to hijack information from processes that are running in the same core.
Note: the vulnerability has been dubbed as PortSmash microarchitecture bug.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.