vulnerability
Oracle Linux: CVE-2016-1583: ELSA-2016-2124-1: kernel security and bug fix update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:H/Au:N/C:C/I:C/A:C) | 2016-06-10 | 2016-10-28 | 2025-01-24 |
Severity
6
CVSS
(AV:L/AC:H/Au:N/C:C/I:C/A:C)
Published
2016-06-10
Added
2016-10-28
Modified
2025-01-24
Description
The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames, leading to recursive pagefault handling.
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.
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.
Solution(s)
oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek
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