CVE - CVE-2016-6197

CVE-ID
CVE-2016-6197	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BID:91709 URL:http://www.securityfocus.com/bid/91709 CONFIRM:http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=11f3710417d026ea2f4fcf362d866342c5274185 CONFIRM:http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html CONFIRM:http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html CONFIRM:https://bugzilla.redhat.com/show_bug.cgi?id=1355650 CONFIRM:https://github.com/torvalds/linux/commit/11f3710417d026ea2f4fcf362d866342c5274185 MLIST:[oss-security] 20160711 Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel URL:http://www.openwall.com/lists/oss-security/2016/07/11/8 REDHAT:RHSA-2016:1847 URL:http://rhn.redhat.com/errata/RHSA-2016-1847.html REDHAT:RHSA-2016:1875 URL:http://rhn.redhat.com/errata/RHSA-2016-1875.html SECTRACK:1036273 URL:http://www.securitytracker.com/id/1036273 UBUNTU:USN-3070-1 URL:http://www.ubuntu.com/usn/USN-3070-1 UBUNTU:USN-3070-2 URL:http://www.ubuntu.com/usn/USN-3070-2 UBUNTU:USN-3070-3 URL:http://www.ubuntu.com/usn/USN-3070-3 UBUNTU:USN-3070-4 URL:http://www.ubuntu.com/usn/USN-3070-4
Assigning CNA
MITRE Corporation
Date Record Created
20160711	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20160711)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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