SB2018100812 - Resource exhaustion in Linux kernel
Published: October 8, 2018 Updated: August 8, 2020
Security Bulletin ID
SB2018100812
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2018-17977)
The vulnerability allows a local privileged user to perform a denial of service (DoS) attack.
The Linux kernel 4.14.67 mishandles certain interaction among XFRM Netlink messages, IPPROTO_AH packets, and IPPROTO_IP packets, which allows local users to cause a denial of service (memory consumption and system hang) by leveraging root access to execute crafted applications, as demonstrated on CentOS 7.
Remediation
Install update from vendor's website.