[Ksplice][RHEL6-Updates] New Ksplice updates for RHEL 6 (RHSA-2017:3200-01)
Gregory Herrero
gregory.herrero at oracle.com
Wed Nov 15 10:46:45 PST 2017
Synopsis: RHSA-2017:3200-01 can now be patched using Ksplice
CVEs: CVE-2017-1000111 CVE-2017-1000112 CVE-2017-14106
Systems running Red Hat Enterprise Linux 6 can now use Ksplice to
patch against the latest Red Hat Security Advisory, RHSA-2017:3200-01.
INSTALLING THE UPDATES
We recommend that all users of Ksplice Uptrack running 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-2017-1000111: Privilege escalation when setting options on AF_PACKET socket.
A missing locking when setting options on AF_PACKET socket could lead to
an out-of-bounds access. A local attacker with CAP_NET_RAW capability,
or on a system with unprivileged namespace enabled, could use this flaw
to cause a denial-of-service or execute arbitrary code.
* CVE-2017-1000112: Privilege escalation using the UDP Fragmentation Offload (UFO) code.
Multiple missing checks on headers length when using UDP Fragmentation
Offload (UFO) protocol while sending packets could lead to out-of-bounds
accesses. A local attacker with CAP_NET_RAW capability, or on a system
with unprivileged namespace enabled, could use this flaw to cause a
denial-of-service or execute arbitrary code.
* CVE-2017-14106: Divide-by-zero on TCP disconnect.
A missing initialization of the TCP Maximum Segment Size (MSS) to the
minimum authorized MSS value could lead to a division by zero on TCP
disconnect. A local user could use this flaw to cause a denial-of-service.
SUPPORT
Ksplice support is available at ksplice-support_ww at oracle.com.
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