CVE-2016-6197

CWE-20 — Improper Input ValidationCWE-362 — Race Condition13 documents9 sources
Severity
5.5MEDIUM
EPSS
0.1%
top 82.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Linux Linux KernelOracle LinuxOracle VM Server
Timeline
PublishedAug 6
Latest updateMay 13

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.

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶Debianlinux< 4.6.1-1+3

Patches

Patch: git.kernel.org ↗Patch: github.com ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-p6f5-7r7f-h77r: fs/overlayfs/dir↗2022-05-13
▶
OSV
CVE-2016-6197: fs/overlayfs/dir↗2016-08-06
▶
CVEList
CVE-2016-6197: fs/overlayfs/dir↗2016-08-06
▶

📋Vendor Advisories

6
Ubuntu
Linux kernel (Raspberry Pi 2) vulnerabilities↗2016-08-30
▶
Ubuntu
Linux kernel (Qualcomm Snapdragon) vulnerabilities↗2016-08-30
▶
Ubuntu
Linux kernel (Xenial HWE) vulnerabilities↗2016-08-30
▶
Ubuntu
Linux kernel vulnerabilities↗2016-08-29
▶
Red Hat
kernel: overlayfs: missing upper dentry verification before unlink and rename↗2016-07-11
▶

💬Community

2
Bugzilla
CVE-2016-6197 kernel: overlayfs: missing upper dentry verification before unlink and rename [fedora-all]↗2016-07-12
▶
Bugzilla
CVE-2016-6197 kernel: overlayfs: missing upper dentry verification before unlink and rename↗2016-07-12
▶
CVE-2016-6197 (MEDIUM CVSS 5.5) | fs/overlayfs/dir.c in the OverlayFS | cvebase.io