SB2018050846 - Red Hat update for Linux Kernel
Published: May 8, 2018 Updated: May 14, 2018
Security Bulletin ID
SB2018050846
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Privilege escalation (CVE-ID: CVE-2018-8897)
The vulnerability allows a local attacker to gain elevated privileges on the target system.The vulnerability exists due to improper implementation of Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) on multiple system kernels, which results in an unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS. A local user can execute arbitrary code with elevated privileges.
2) Error handling (CVE-ID: CVE-2018-1000199)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists in the modify_user_hw_breakpoint() function due to error handling flaw. A local attacker can cause the service to crash.
Remediation
Install update from vendor's website.