CVE-2016-6197
Summary
| CVE | CVE-2016-6197 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-08-06 20:59:00 UTC |
| Updated | 2019-12-27 16:08:00 UTC |
| 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. |
Risk And Classification
Problem Types: CWE-20
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| USN-3070-2: Linux kernel (Raspberry Pi 2) vulnerabilities | Ubuntu | UBUNTU | www.ubuntu.com | |
| oss-security - Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel | MLIST | www.openwall.com | Mailing List, Third Party Advisory |
| Oracle Linux Bulletin - July 2016 | CONFIRM | www.oracle.com | Third Party Advisory |
| Linux Kernel xfsoverlay Rename Bugs Let Local Users Cause Denial of Service Conditions on the Target System - SecurityTracker | SECTRACK | www.securitytracker.com | |
| kernel/git/torvalds/linux.git - Linux kernel source tree | CONFIRM | git.kernel.org | Issue Tracking, Patch |
| Linux Kernel Multiple Denial of Service Vulnerabilities | BID | www.securityfocus.com | |
| USN-3070-4: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu | UBUNTU | www.ubuntu.com | |
| ovl: verify upper dentry before unlink and rename · torvalds/linux@11f3710 · GitHub | CONFIRM | github.com | Issue Tracking, Patch |
| Oracle VM Server for x86 Bulletin - July 2016 | CONFIRM | www.oracle.com | Vendor Advisory |
| Red Hat Customer Portal | REDHAT | rhn.redhat.com | |
| Bug 1355650 – CVE-2016-6197 kernel: overlayfs: missing upper dentry verification before unlink and rename | CONFIRM | bugzilla.redhat.com | Issue Tracking |
| Red Hat Customer Portal | REDHAT | rhn.redhat.com | |
| USN-3070-1: Linux kernel vulnerabilities | Ubuntu | UBUNTU | www.ubuntu.com | |
| USN-3070-3: Linux kernel (Qualcomm Snapdragon) vulnerabilities | Ubuntu | UBUNTU | www.ubuntu.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 671064 EulerOS Security Update for kernel (EulerOS-SA-2019-2599)