CVE-2015-8660

Public Exploit

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.

Category

6.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 68.14% Top 5%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory kernel.org Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html third party advisory
https://www.exploit-db.com/exploits/39166/ third party advisory vdb entry exploit
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00039.html vendor advisory mailing list third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00043.html vendor advisory mailing list third party advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html third party advisory
http://packetstormsecurity.com/files/135151/Ubuntu-14.04-LTS-15.10-overlayfs-Local-Root.html third party advisory vdb entry
http://www.securitytracker.com/id/1034548 third party advisory vdb entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=acff81ec2c79492b180fade3c2894425cd35a545 vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-1541.html third party advisory vendor advisory
https://github.com/torvalds/linux/commit/acff81ec2c79492b180fade3c2894425cd35a545 vendor advisory
https://www.exploit-db.com/exploits/40688/ third party advisory vdb entry exploit
http://www.openwall.com/lists/oss-security/2015/12/23/5 third party advisory mailing list
http://rhn.redhat.com/errata/RHSA-2016-1539.html third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2857-2 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-1532.html third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1291329 third party advisory issue tracking
https://www.exploit-db.com/exploits/39230/ third party advisory vdb entry exploit
http://www.ubuntu.com/usn/USN-2858-2 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2858-3 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2858-1 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2857-1 third party advisory vendor advisory
http://www.securityfocus.com/bid/79671 third party advisory vdb entry
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00040.html vendor advisory mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2015-8660?
CVE-2015-8660 has been scored as a medium severity vulnerability.
How to fix CVE-2015-8660?
To fix CVE-2015-8660, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-8660 being actively exploited in the wild?
It is possible that CVE-2015-8660 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~68% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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