drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in QEMU
Name: |
Denial of Service in QEMU |
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ID: |
RHSA-2017:1681-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Mi, 5. Juli 2017, 16:33 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2017-9524 |
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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-2017:1681-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:1681 Issue date: 2017-07-05 CVE Names: CVE-2017-9524 =====================================================================
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 package provides the user-space component for running virtual machines that use KVM.
Security Fix(es):
* Quick Emulator (QEMU) built with Network Block Device (NBD) Server support was vulnerable to a null-pointer dereference issue. The flaw could occur when releasing a client, which was not initialized due to failed negotiation. A remote user or process could exploit this flaw to crash the qemu-nbd server (denial of service). (CVE-2017-9524)
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/):
1460170 - CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: qemu-kvm-1.5.3-126.el7_3.10.src.rpm
x86_64: qemu-img-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-common-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-tools-1.5.3-126.el7_3.10.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source: qemu-kvm-1.5.3-126.el7_3.10.src.rpm
x86_64: qemu-img-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-common-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-tools-1.5.3-126.el7_3.10.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: qemu-kvm-1.5.3-126.el7_3.10.src.rpm
ppc64: qemu-img-1.5.3-126.el7_3.10.ppc64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.10.ppc64.rpm
ppc64le: qemu-img-1.5.3-126.el7_3.10.ppc64le.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.10.ppc64le.rpm
x86_64: qemu-img-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-common-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-tools-1.5.3-126.el7_3.10.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: qemu-kvm-1.5.3-126.el7_3.10.src.rpm
x86_64: qemu-img-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-common-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-debuginfo-1.5.3-126.el7_3.10.x86_64.rpm qemu-kvm-tools-1.5.3-126.el7_3.10.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-2017-9524 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/
Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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