Vulnerability Description
The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.18, < 3.18.31 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=acff81Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00039.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00040.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00043.htmlMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/135151/Ubuntu-14.04-LTS-15.10-overlayfs-LocThird Party AdvisoryVDB Entry
- http://rhn.redhat.com/errata/RHSA-2016-1532.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1539.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1541.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/12/23/5Mailing ListThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.hThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmThird Party Advisory
- http://www.securityfocus.com/bid/79671Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1034548Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2857-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2857-2Third Party Advisory
FAQ
What is CVE-2015-8660?
CVE-2015-8660 is a vulnerability with a CVSS score of 6.7 (MEDIUM). The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and mo...
How severe is CVE-2015-8660?
CVE-2015-8660 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-8660?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.