Alerts This Week
Warning Icon 1 541
Alerts This Week
Warning Icon 1 541

RedHat: RHSA-2023-0456-02 Critical: Qemu-Kvm-Rhev Security Flaw

Redhat Large Esm H500
Updated qemu-kvm-rhev packages that fix one security issue are now available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

====================================================================                   Red Hat Security Advisory

Synopsis:          Important: qemu-kvm-rhev security update
Advisory ID:       RHSA-2015:0795-01
Product:           Red Hat Enterprise Linux OpenStack Platform
Advisory URL:      https://access.redhat.com/errata/RHSA-2015:0795.html
Issue date:        2015-04-09
CVE Names:         CVE-2014-8106 
====================================================================
1. Summary:

Updated qemu-kvm-rhev packages that fix one security issue are now
available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat
Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7 - x86_64

3. Description:

KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the
user-space component for running virtual machines using KVM, in
environments managed by Red Hat Enterprise Linux OpenStack Platform.

It was found that the Cirrus blit region checks were insufficient.
A privileged guest user could use this flaw to write outside of
VRAM-allocated buffer boundaries in the host's QEMU process address space
with attacker-provided data. (CVE-2014-8106)

This issue was discovered by Paolo Bonzini of Red Hat.

All users of qemu-kvm-rhev are advised to upgrade to these updated
packages, which contain a backported patch to correct this issue. After
installing this update, shut down all running virtual machines. Once all
virtual machines have shut down, start them again for this update to take
effect.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1169454 - CVE-2014-8106 qemu: cirrus: insufficient blit region checks

6. Package List:

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:

Source:
qemu-kvm-rhev-2.1.2-23.el7.src.rpm

x86_64:
libcacard-devel-rhev-2.1.2-23.el7.x86_64.rpm
libcacard-rhev-2.1.2-23.el7.x86_64.rpm
libcacard-tools-rhev-2.1.2-23.el7.x86_64.rpm
qemu-img-rhev-2.1.2-23.el7.x86_64.rpm
qemu-kvm-common-rhev-2.1.2-23.el7.x86_64.rpm
qemu-kvm-rhev-2.1.2-23.el7.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.1.2-23.el7.x86_64.rpm
qemu-kvm-tools-rhev-2.1.2-23.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2014-8106
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2015 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iD8DBQFVJwTlXlSAg2UNWIIRAipjAKC3bKtp3PEmBxKTu7zKu5GNNHaEWACgl2Ds
9SnvZWJnjMthWZkJTfl3q7A=H++c
-----END PGP SIGNATURE-----


-- 
Enterprise-watch-list mailing list
This email address is being protected from spambots. You need JavaScript enabled to view it.

RedHat: RHSA-2023-0456-02 Critical: Qemu-Kvm-Rhev Security Flaw

red hat
Calendar Grey April 9, 2015
Dist Redhat Esm H88
Revised qemu-kvm-rhev updates tackle a significant security concern for users of Red Hat OpenStack.
Updated qemu-kvm-rhev packages that fix one security issue are now available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat Enterprise Linux 7

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM, in environments managed by Red Hat Enterprise Linux OpenStack Platform.
It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM-allocated buffer boundaries in the host's QEMU process address space with attacker-provided data. (CVE-2014-8106)
This issue was discovered by Paolo Bonzini of Red Hat.
All users of qemu-kvm-rhev are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.

References

https://access.redhat.com/security/cve/CVE-2014-8106 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:
Source: qemu-kvm-rhev-2.1.2-23.el7.src.rpm
x86_64: libcacard-devel-rhev-2.1.2-23.el7.x86_64.rpm libcacard-rhev-2.1.2-23.el7.x86_64.rpm libcacard-tools-rhev-2.1.2-23.el7.x86_64.rpm qemu-img-rhev-2.1.2-23.el7.x86_64.rpm qemu-kvm-common-rhev-2.1.2-23.el7.x86_64.rpm qemu-kvm-rhev-2.1.2-23.el7.x86_64.rpm qemu-kvm-rhev-debuginfo-2.1.2-23.el7.x86_64.rpm qemu-kvm-tools-rhev-2.1.2-23.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2015:0795-01
Product: Red Hat Enterprise Linux OpenStack Platform
Issue date: 2015-04-09

Topic

Updated qemu-kvm-rhev packages that fix one security issue are nowavailable for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red HatEnterprise Linux 7.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7 - x86_64

Bugs Fixed

1169454 - CVE-2014-8106 qemu: cirrus: insufficient blit region checks

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here