[Ksplice][Ubuntu-17.10-Updates] New Ksplice updates for Ubuntu 17.10 Artful (4.13.0-36.40)

[Oracle Ksplice]

Synopsis: 4.13.0-36.40 can now be patched using Ksplice
CVEs: CVE-2017-15115 CVE-2017-17712 CVE-2017-8824

Systems running Ubuntu 17.10 Artful can now use Ksplice to patch
against the latest Ubuntu kernel update, 4.13.0-36.40.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Ubuntu 17.10
Artful install these updates.

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


DESCRIPTION

* CVE-2017-8824: Privileges escalation when calling connect() system call on a DCCP socket.

A missing free when calling connect() system call on a DCCP socket while it is
in DCCP_LISTEN state could lead to a use-after-free. A local attacker
could use this flaw to escalate privileges.


* CVE-2017-15115: Use-after-free in SCTP peel off operation inside network namespace.

A logic error when performing an SCTP peel off operation from a network
namespace can result in an incorrect free, leading to a subsequent
use-after-free. A local user could use this flaw to cause a
denial-of-service, or potentially escalate privileges.


* CVE-2017-17712: Information leak in raw IPV4 socket sendmsg().

A race condition in the raw_sendmsg() call for IPV4 raw sockets could
allow a local user to leak the contents of kernel memory.


* NULL pointer dereference when iterating tags in kernel block layer.

A missing check when iterating tags in kernel block layer could lead to
a NULL pointer dereference. A local attacker could use this flaw to
cause a denial-of-service.


* Denial-of-service when shutting down iSCSI transport interface.

Logic errors when shutting down iSCSI transport interface without logging
out could cause a deadlock. A local attacker could use this flaw to
cause a denial-of-service.


* NULL pointer dereference when using Hisilicon Hibmc DRM driver.

A logic error when using Hisilicon Hibmc DRM driver could lead to a NULL
pointer dereference. A local attacker could use this flaw to cause a
denial-of-service.


* Deadlock when using TUNSETSNDBUF ioctl of TAP driver.

A missing check on user input when using TUNSETSNDBUF ioctl in TAP
driver could lead to a deadlock. A local attacker could use this flaw to
cause a denial-of-service.

SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.