Improper input validation in Linux kernel - CVE-2017-15121

 

Improper input validation in Linux kernel - CVE-2017-15121

Published: April 27, 2018


Vulnerability identifier: #VU12264
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2017-15121
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

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.

How to mitigate CVE-2017-15121

Update to version 4.4.

Sources