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Vulnerability record · CVE-2015-8660 · published 28 December 2015

CVE-2015-8660: Linux kernel permissions and access controls vulnerability

Linux · Linux Kernel

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.

6.7 CVSS 3.1 Medium EPSS 22% · top 2.4% CWE-264 · Permissions and access controls
6.7CVSS 3.1 base score, v2 7.2
22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
46References
17 Jun 2026Last modified by NVD

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:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=acff81ec2c79492b180fade3c2894425cd35a545 Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00039.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00040.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00043.html Mailing ListThird Party Advisory
http://packetstormsecurity.com/files/135151/Ubuntu-14.04-LTS-15.10-overlayfs-Local-Root.html Third Party AdvisoryVDB Entry
http://rhn.redhat.com/errata/RHSA-2016-1532.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1539.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1541.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/23/5 Mailing ListThird Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Third Party Advisory
http://www.securityfocus.com/bid/79671 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034548 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2857-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2857-2 Third Party Advisory
http://www.ubuntu.com/usn/USN-2858-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2858-2 Third Party Advisory
http://www.ubuntu.com/usn/USN-2858-3 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1291329 Issue TrackingThird Party Advisory
https://github.com/torvalds/linux/commit/acff81ec2c79492b180fade3c2894425cd35a545 Vendor Advisory
https://www.exploit-db.com/exploits/39166/ Third Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/39230/ Third Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/40688/ Third Party AdvisoryVDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=acff81ec2c79492b180fade3c2894425cd35a545 Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00039.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00040.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00043.html Mailing ListThird Party Advisory
http://packetstormsecurity.com/files/135151/Ubuntu-14.04-LTS-15.10-overlayfs-Local-Root.html Third Party AdvisoryVDB Entry
http://rhn.redhat.com/errata/RHSA-2016-1532.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1539.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1541.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/23/5 Mailing ListThird Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Third Party Advisory
http://www.securityfocus.com/bid/79671 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034548 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2857-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2857-2 Third Party Advisory
http://www.ubuntu.com/usn/USN-2858-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2858-2 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2015-8660), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.