SB2018030618 - Red Hat update for kernel
Published: March 6, 2018
Security Bulletin ID
SB2018030618
Severity
High
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Adjecent network
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-2017-7518)
The vulnerability allows an local attacker to gain elevated privileges on the guest system.
The weakness exists due to debug exception error in syscall emulation. A attacker can gain system privileges.
Successful exploitation of the vulnerability results in privilege escalation.
2) Path traversal (CVE-ID: CVE-2017-12188)
The vulnerability allows an adjacent attacker to cause DoS condition or execute arbitrary code on the target system.The weakness exists in arch/x86/kvm/mmu.c due to improper traversal of guest pagetable entries to resolve a guest virtual address when nested virtualisation is used. An adjacent attacker can cause the service to crash or execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.