[El-errata] New Ksplice updates for UEKR4 4.1.12 on OL6 and OL7 (ELSA-2017-3631)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2017-3631 can now be patched using Ksplice
CVEs: CVE-2017-1000112 CVE-2017-7542

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2017-3631.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR4 4.1.12 on
OL6 and OL7 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-2017-1000112: 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-2017-7542: Buffer overflow when parsing IPV6 fragments header.

An incorrect data type when parsing IPV6 fragments header could lead to
a buffer overflow and to an infinite loop. A remote attacker could use
this flaw to cause a denial-of-service.

SUPPORT

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