[El-errata] New updates available via Ksplice (ELSA-2014-3053)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2014-3053 can now be patched using Ksplice
CVEs: CVE-2014-0196 CVE-2014-3144 CVE-2014-3145 CVE-2014-5077

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Security Advisory, ELSA-2014-3053.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on EL 5 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-2014-5077: Remote denial-of-service in SCTP on simultaneous connections.

Linux kernel built with the support for Stream Control Transmission
Protocol is vulnerable to a NULL pointer dereference flaw. It could occur
when simultaneous new connections are initiated between the same pair of
hosts. A remote user/program could use this flaw to crash the system kernel
resulting in denial-of-service.


* CVE-2014-0196: Pseudo TTY device write buffer handling race.

A race in how the pseudo ttyp (pty) device handled device writes when
two threads/processes wrote to the same pty, the buffer end could be
overwritten. An attacker could use this to cause a denial-of-service or
gain root privileges.


* CVE-2014-3144, CVE-2014-3145: Multiple local denial of service vulnerabilities in netlink.

The BPF_S_ANC_NLATTR and BPF_S_ANC_NLATTR_NEST extension implementations
in the sk_run_filter function in net/core/filter.c failed to check whether
a certain length value is sufficiently large, which allows local users to
cause a denial of service (integer underflow and system crash) via crafted
BPF instructions.

SUPPORT

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