SB2017120509 - Denial of service in Linux Kernel
Published: December 5, 2017
Security Bulletin ID
SB2017120509
CSH 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 vulnerability.
1) Improper input validation (CVE-ID: CVE-2017-15121)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local unauthenticated attacker to cause DoS condition on the target system.
The weakness exists due to an application punches a hole in a file that does not end aligned to a page boundary. A local attacker can mount a fuse filesystem and cause the service to crash.
Remediation
Install update from vendor's website.