SB2018022810 - Denial of service in Linux Kernel
Published: February 28, 2018
Security Bulletin ID
SB2018022810
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Infinite loop (CVE-ID: CVE-2017-18208)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: 5.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the madvise_willneed function due to infinite loop. A local attacker can trigger use of MADVISE_WILLNEED for a DAX mapping and cause the service to crash.
Remediation
Install update from vendor's website.