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CVE-2015-8839

Public on 2016-05-02
Modified on 2016-05-18
Description

A flaw was found in the Linux kernel when attempting to "punch a hole" in files existing on an ext4 filesystem. When punching holes into a file races with the page fault of the same area, it is possible that freed blocks remain referenced from page cache pages mapped to process' address space.

Severity
Medium
See what this means
CVSS v3 Base Score
4.7
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2016-05-18 14:00 ALAS-2016-703

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 4.7 AV:L/AC:M/Au:N/C:N/I:C/A:N
NVD CVSSv2 1.9 AV:L/AC:M/Au:N/C:N/I:N/A:P
NVD CVSSv3 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H