SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:3226-1) (Dirty COW)
High Nessus Plugin ID 105073
SynopsisThe remote SUSE host is missing one or more security updates.
DescriptionThe SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed :
- CVE-2017-1000405: A bug in the THP CoW support could be used by local attackers to corrupt memory of other processes and cause them to crash (bnc#1069496).
- CVE-2017-16939: The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages (bnc#1069702).
The update package also includes non-security fixes. See advisory for details.
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionTo install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :
SUSE Linux Enterprise Workstation Extension 12-SP2:zypper in -t patch SUSE-SLE-WE-12-SP2-2017-2007=1
SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-2007=1
SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t patch SUSE-SLE-RPI-12-SP2-2017-2007=1
SUSE Linux Enterprise Server 12-SP2:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-2007=1
SUSE Linux Enterprise Live Patching 12:zypper in -t patch SUSE-SLE-Live-Patching-12-2017-2007=1
SUSE Linux Enterprise High Availability 12-SP2:zypper in -t patch SUSE-SLE-HA-12-SP2-2017-2007=1
SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-2007=1
OpenStack Cloud Magnum Orchestration 7:zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2017-2007=1
To bring your system up-to-date, use 'zypper patch'.