SB2018080719 - Red Hat update for kernel
Published: August 7, 2018 Updated: August 10, 2018
Security Bulletin ID
SB2018080719
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Speculative Store Bypass (CVE-ID: CVE-2018-3639)
The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.The weakness exists due to race conditions in CPU cache processing. A local attacker can conduct a side-channel attack to exploit a flaw in the speculative execution of Load and Store instructions to read privileged memory.
Note: the vulnerability is referred to as "Spectre variant 4".
Remediation
Install update from vendor's website.