[Ksplice][Ubuntu-17.04-Updates] New Ksplice updates for Ubuntu 17.04 Zesty (USN-3468-1)

[Oracle Ksplice]

Synopsis: USN-3468-1 can now be patched using Ksplice
CVEs: CVE-2017-1000252 CVE-2017-10663 CVE-2017-10911 CVE-2017-11176 CVE-2017-14340

Systems running Ubuntu 17.04 Zesty can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-3468-1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Ubuntu 17.04
Zesty 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-2017-11176: Use-after-free in message queue notify syscall.

A race condition when closing a message queue file descriptor could cause
the memory for the associated socket to be freed twice, corrupting memory
or causing a denial-of-service.


* CVE-2017-10911: Information leak in Xen block-device backend driver.

A data structure allocated on stack in Xen block-device backend driver
may leak sensitive data through padding fields. A malicious unprivileged
guest may be able to obtain sensitive information from the host or other
guests.


* CVE-2017-14340: Denial-of-service when flushing data on XFS without a realtime device.

Lack of input validation before trying to flush data to a real-time device
on XFS where the device might not be present leads to a NULL pointer
dereference.  A local, unprivileged user can use this flaw to cause a
denial-of-service.


* CVE-2017-10663: Privilege escalation when mounting F2FS image.

Missing sanity-checks in Flash-Friendly File System allows out-of-bound
write operations. This could enable a malicious user to escalate privilege
when a raw F2FS image is mounted.


* CVE-2017-1000252: Denial-of-service when receiving out of bounds KVM's guest interrupts.

A kernel assert when receiving out of bounds guest interrupts in KVM
could lead to a kernel hang. A local attacker from a guest VM could use
this flaw to cause a denial-of-service.


* Denial-of-service in r8152 driver.

An uninitialized list could cause a NULL pointer dereference while
polling.  An attacker could exploit this to cause a denial-of-service.

SUPPORT

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