[Ksplice][RHEL6-Updates] New updates available via Ksplice (RHSA-2015:2636-1)
Oracle Ksplice
ksplice-support_ww at oracle.com
Wed Dec 16 01:26:48 PST 2015
Synopsis: RHSA-2015:2636-1 can now be patched using Ksplice
CVEs: CVE-2015-2925 CVE-2015-5307 CVE-2015-7613 CVE-2015-7872 CVE-2015-8104
Systems running Red Hat Enterprise Linux 6 can now use Ksplice to
patch against the latest Red Hat Security Advisory, RHSA-2015:2636-1.
INSTALLING THE UPDATES
We recommend that all users of Ksplice Uptrack on RHEL 6 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-2015-7872: Denial-of-service when garbage collecting uninstantiated keyring.
A logic error in the security keyring subsystem leads to a kernel crash
when garbage collecting a un-instantiated keyring. A local, un-privileged
user can use this flaw to cause a denial-of-service.
* CVE-2015-7613: Privilege escalation in IPC object initialization.
Incorrect initialization of IPC objects could result in memory
corruption when creating message queues or shared memory. A local,
unprivileged user could use this flaw to escalate privileges.
* CVE-2015-5307: KVM host denial-of-service in alignment check.
A guest could cause a denial-of-service on a KVM host by triggering an
infinite stream of alignment check exceptions and causing the processor
microcode to enter an infinite loop. A privileged user in a guest could
use this flaw to crash the host.
* CVE-2015-8104: KVM host denial-of-service in debug exception.
A guest could cause a denial-of-service on a KVM host by triggering a
debug exception to fire during an existing debug exception. This could
cause the host to get trapped in an infinite loop causing a
denial-of-service. A privileged user in a guest could use this flaw to
crash the host.
* CVE-2015-2925: Privilege escalation in bind mounts inside namespaces.
Incorrect handling of renames inside container bind mounts could allow a
local user to escape a container and escalate privileges under specific
conditions.
SUPPORT
Ksplice support is available at ksplice-support_ww at oracle.com.
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