CVE-2016-1583
kernel: Stack overflow via ecryptfs and /proc/$pid/environ
Severity
ImportantRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · June 10, 2016
Updated · November 21, 2025
Description
It was found that stacking a file system over procfs in the Linux kernel could lead to a kernel stack overflow due to deep nesting, as demonstrated by mounting ecryptfs over procfs and creating a recursion by mapping /proc/environ. An unprivileged, local user could potentially use this flaw to escalate their privileges on the system.
Statement
This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux 5 and 6 and may addressed in a future update.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 8.1CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 · 6.9AV:L/AC:M/Au:N/C:C/I:C/A:C
CWE-121 · Stack-based Buffer Overflow