Scientific Linux Security Update : kernel on SL6.x i386/x86_64

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

This update fixes the following security issues :

- A flaw was found in the way the xen_iret() function in
the Linux kernel used the DS (the CPU's Data Segment)
register. A local, unprivileged user in a 32-bit,
para-virtualized Xen hypervisor guest could use this
flaw to crash the guest or, potentially, escalate their
privileges. (CVE-2013-0228, Important)

- A flaw was found in the way file permission checks for
the '/dev/cpu/[x]/msr' files were performed in
restricted root environments (for example, when using a
capability-based security model). A local user with the
ability to write to these files could use this flaw to
escalate their privileges to kernel level, for example,
by writing to the SYSENTER_EIP_MSR register.
(CVE-2013-0268, Important)

The system must be rebooted for this update to take effect.

See also :

http://www.nessus.org/u?782cb4bf

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.2
(CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 65564 ()

Bugtraq ID:

CVE ID: CVE-2013-0228
CVE-2013-0268