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redhatRedHatRHSA-2013:0636
HistoryMar 13, 2013 - 12:00 a.m.

(RHSA-2013:0636) Important: rhev-hypervisor6 security and bug fix update

2013-03-1300:00:00
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36

EPSS

0.023

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89.8%

The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization
Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor
is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes
everything necessary to run and manage virtual machines: A subset of the
Red Hat Enterprise Linux operating environment and the Red Hat Enterprise
Virtualization Agent.

Note: Red Hat Enterprise Virtualization Hypervisor is only available for
the Intel 64 and AMD64 architectures with virtualization extensions.

A flaw was found in the way QEMU-KVM emulated the e1000 network interface
card when the host was configured to accept jumbo network frames, and a
guest using the e1000 emulated driver was not. A remote attacker could use
this flaw to crash the guest or, potentially, execute arbitrary code with
root privileges in the guest. (CVE-2012-6075)

It was discovered that GnuTLS leaked timing information when decrypting
TLS/SSL protocol encrypted records when CBC-mode cipher suites were used. A
remote attacker could possibly use this flaw to retrieve plain text from
the encrypted packets by using a TLS/SSL server as a padding oracle.
(CVE-2013-1619)

It was discovered that OpenSSL leaked timing information when decrypting
TLS/SSL and DTLS protocol encrypted records when CBC-mode cipher suites
were used. A remote attacker could possibly use this flaw to retrieve plain
text from the encrypted packets by using a TLS/SSL or DTLS server as a
padding oracle. (CVE-2013-0169)

A NULL pointer dereference flaw was found in the OCSP response verification
in OpenSSL. A malicious OCSP server could use this flaw to crash
applications performing OCSP verification by sending a specially-crafted
response. (CVE-2013-0166)

It was discovered that the TLS/SSL protocol could leak information about
plain text when optional compression was used. An attacker able to control
part of the plain text sent over an encrypted TLS/SSL connection could
possibly use this flaw to recover other portions of the plain text.
(CVE-2012-4929)

This updated package provides updated components that include fixes for
various security issues. These issues have no security impact on Red Hat
Enterprise Virtualization Hypervisor itself, however. The security fixes
included in this update address the following CVE numbers:

CVE-2013-0292 (dbus-glib issue)

CVE-2013-0228, CVE-2013-0268, and CVE-2013-0871 (kernel issues)

CVE-2013-0338 (libxml2 issue)

This update contains the builds from the following errata:

ovirt-node: RHBA-2013:0634
https://rhn.redhat.com/errata/RHBA-2013-0634.html
kernel: RHSA-2013:0630
https://rhn.redhat.com/errata/RHSA-2013-0630.html
dbus-glib: RHSA-2013:0568
https://rhn.redhat.com/errata/RHSA-2013-0568.html
libcgroup: RHBA-2013:0560
https://rhn.redhat.com/errata/RHBA-2013-0560.html
vdsm: RHBA-2013:0635
https://rhn.redhat.com/errata/RHBA-2013-0635.html
selinux-policy: RHBA-2013:0618
https://rhn.redhat.com/errata/RHBA-2013-0618.html
qemu-kvm-rhev: RHSA-2013:0610
https://rhn.redhat.com/errata/RHSA-2013-0610.html
glusterfs: RHBA-2013:0620
https://rhn.redhat.com/errata/RHBA-2013-0620.html
gnutls: RHSA-2013:0588
https://rhn.redhat.com/errata/RHSA-2013-0588.html
ipmitool: RHBA-2013:0572
https://rhn.redhat.com/errata/RHBA-2013-0572.html
libxml2: RHSA-2013:0581
https://rhn.redhat.com/errata/RHSA-2013-0581.html
openldap: RHBA-2013:0598
https://rhn.redhat.com/errata/RHBA-2013-0598.html
openssl: RHSA-2013:0587
https://rhn.redhat.com/errata/RHSA-2013-0587.html

Users of the Red Hat Enterprise Virtualization Hypervisor are advised to
upgrade to this updated package, which fixes these issues.