CVEvulnerability

CVE-2016-6197

5.5 MEDIUM Published 2016-08-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2016-08-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
5.5 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-20

Description

fs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service (system crash) via a rename system call that specifies a self-hardlink.

Affected configurations

• oracle linux 6 • linux linux kernel (<= 4.5.7) • oracle vm server 3.4

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References