Linux Kernel key_gc_unused_keys() Garbage Collection Bug Lets Local Users Cause Denial of Service Conditions on the Target System
|
SecurityTracker Alert ID: 1034472 |
SecurityTracker URL: http://securitytracker.com/id/1034472
|
CVE Reference:
CVE-2015-7872
(Links to External Site)
|
Date: Dec 17 2015
|
Impact:
Denial of service via local system
|
Fix Available: Yes Vendor Confirmed: Yes
|
|
Description:
A vulnerability was reported in the Linux kernel. A local user can cause denial of service conditions on the target system.
A local user can supply a specially crafted keyctl command to trigger a garbage collection error in the keyring handler and cause the target system to crash.
The vulnerability resides in the key_gc_unused_keys() function in 'security/keys/gc.c'.
Dmitry Vyukov reported this vulnerability.
|
Impact:
A local user can cause the target system to crash.
|
Solution:
The vendor has issued a source code fix, available at:
https://github.com/torvalds/linux/commit/ce1fad2740c648a4340f6f6c391a8a83769d2e8c
https://github.com/torvalds/linux/commit/f05819df10d7b09f6d1eb6f8534a8f68e5a4fe61
|
Vendor URL: www.kernel.org/ (Links to External Site)
|
Cause:
State error
|
|
Message History:
This archive entry has one or more follow-up message(s) listed below.
|
Source Message Contents
|
|
[Original Message Not Available for Viewing]
|
|