A flaw was found where a regular user could remove xattr permissions on files by using the chown or write systemcalls. An attacker could use this feature to remove capabilities effectively denying elevated permissions to valid users. Certain services and applications require the capabilities subsystem to work correctly.
As of 3.19 release, this commit is NOT in mainline tree.
This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 6, 7 and MRG 2.
This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1192874]