drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberlauf in QEMU
Name: |
Pufferüberlauf in QEMU |
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ID: |
RHSA-2017:0987-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Di, 18. April 2017, 22:39 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2016-9603 |
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Applikationen: |
QEMU |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Important: qemu-kvm security update Advisory ID: RHSA-2017:0987-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:0987 Issue date: 2017-04-18 CVE Names: CVE-2016-9603 =====================================================================
1. Summary:
An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64
3. Description:
Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.
Security Fix(es):
* A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603)
4. Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
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.
5. Bugs fixed (https://bugzilla.redhat.com/):
1430056 - CVE-2016-9603 Qemu: cirrus: heap buffer overflow via vnc connection
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: qemu-kvm-1.5.3-126.el7_3.6.src.rpm
x86_64: qemu-img-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-common-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-tools-1.5.3-126.el7_3.6.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source: qemu-kvm-1.5.3-126.el7_3.6.src.rpm
x86_64: qemu-img-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-common-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-tools-1.5.3-126.el7_3.6.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: qemu-kvm-1.5.3-126.el7_3.6.src.rpm
ppc64: qemu-img-1.5.3-126.el7_3.6.ppc64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.6.ppc64.rpm
ppc64le: qemu-img-1.5.3-126.el7_3.6.ppc64le.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.6.ppc64le.rpm
x86_64: qemu-img-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-common-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-tools-1.5.3-126.el7_3.6.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: qemu-kvm-1.5.3-126.el7_3.6.src.rpm
x86_64: qemu-img-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-common-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.6.x86_64.rpm qemu-kvm-tools-1.5.3-126.el7_3.6.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-2016-9603 https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
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