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
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2016-05-18 | ALAS-2016-703 | Fixed |
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 |