Synopsis

Moderate: qemu-kvm-rhev security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 10.0 (Newton), Red Hat OpenStack Platform 11.0 (Ocata), Red Hat OpenStack Platform 12.0 (Pike), Red Hat OpenStack Platform 8.0 (Liberty), and Red Hat OpenStack Platform 9.0 (Mitaka).

Red Hat Product Security has rated this update as having a security impact of Moderate. 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.

Description

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.

Security Fix(es):

• The Network Block Device (NBD) server in Quick Emulator (QEMU), is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS. (CVE-2017-15119)
  
• Qemu: vga: OOB read access during display update (CVE-2017-13672)
  
• Qemu: vga: reachable assert failure during display update (CVE-2017-13673)
  
• Qemu: Slirp: use-after-free when sending response (CVE-2017-13711)
  
• VNC server implementation in Quick Emulator (QEMU) was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A malicious remote VNC client could use this flaw to cause DoS to the server host. (CVE-2017-15124)
  

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank David Buchanan for reporting CVE-2017-13672 and CVE-2017-13673 and Wjjzhang (Tencent.com) for reporting CVE-2017-13711. The CVE-2017-15119 issue was discovered by Eric Blake (Red Hat) and the CVE-2017-15124 issue was discovered by Daniel Berrange (Red Hat).

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.

Affected Products

• Red Hat OpenStack 12 x86_64
• Red Hat OpenStack 11 x86_64
• Red Hat OpenStack 10 x86_64
• Red Hat OpenStack 9 x86_64
• Red Hat OpenStack 8 x86_64
• Red Hat OpenStack for IBM Power 12 ppc64le

Fixes

• BZ - 1486400 - CVE-2017-13711 Qemu: Slirp: use-after-free when sending response
• BZ - 1486560 - CVE-2017-13672 Qemu: vga: OOB read access during display update
• BZ - 1486588 - CVE-2017-13673 Qemu: vga: reachable assert failure during display update
• BZ - 1516925 - CVE-2017-15119 qemu: DoS via large option request
• BZ - 1525195 - CVE-2017-15124 Qemu: memory exhaustion through framebuffer update request message in VNC server
• BZ - 1549860 - Update qemu-kvm-rhev for RHEL 7.5 compatibility [osp-11]
• BZ - 1553107 - Update qemu-kvm-rhev for RHEL 7.5 compatibility [osp-10]
• BZ - 1557010 - Update qemu-kvm-rhev for RHEL 7.5 compatibility [osp-9]
• BZ - 1557011 - Update qemu-kvm-rhev for RHEL 7.5 compatibility [osp-8]
• BZ - 1562826 - Update qemu-kvm-rhev for RHEL 7.5 compatibility [osp-12]

CVEs

• CVE-2017-13672
• CVE-2017-13673
• CVE-2017-13711
• CVE-2017-15118
• CVE-2017-15119
• CVE-2017-15124
• CVE-2017-15268
• CVE-2018-5683

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat OpenStack 12

SRPM
qemu-kvm-rhev-2.10.0-21.el7.src.rpm	SHA-256: cbc79a0d8ac5c859f1bfd858735a08d04e642a9342e677e23c406fca9f8619c0
x86_64
qemu-img-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 31a73d9d5ad5bc2425a2372a65ec3582599b0ee11ae8724ee020665a44a7deb6
qemu-kvm-common-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 22f427679165fc0014474d05d8553cf6475388bc0d20cba4c726ad0ae7a954b5
qemu-kvm-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: c4c75d1aa54b06a70b5a73573aa6c728136d26b64dbdac06947a3cbb0db5a52f
qemu-kvm-rhev-debuginfo-2.10.0-21.el7.x86_64.rpm	SHA-256: 36149db9712cf5281389c21131cfdfa9a33ffb835ba3263907c5373b925919e4
qemu-kvm-tools-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 0aca8b45b8edd3844eabacd58566152c651517f155e1bebaf1e163796682a98d

Red Hat OpenStack 11

SRPM
qemu-kvm-rhev-2.10.0-21.el7.src.rpm	SHA-256: cbc79a0d8ac5c859f1bfd858735a08d04e642a9342e677e23c406fca9f8619c0
x86_64
qemu-img-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 31a73d9d5ad5bc2425a2372a65ec3582599b0ee11ae8724ee020665a44a7deb6
qemu-kvm-common-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 22f427679165fc0014474d05d8553cf6475388bc0d20cba4c726ad0ae7a954b5
qemu-kvm-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: c4c75d1aa54b06a70b5a73573aa6c728136d26b64dbdac06947a3cbb0db5a52f
qemu-kvm-rhev-debuginfo-2.10.0-21.el7.x86_64.rpm	SHA-256: 36149db9712cf5281389c21131cfdfa9a33ffb835ba3263907c5373b925919e4
qemu-kvm-tools-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 0aca8b45b8edd3844eabacd58566152c651517f155e1bebaf1e163796682a98d

Red Hat OpenStack 10

SRPM
qemu-kvm-rhev-2.10.0-21.el7.src.rpm	SHA-256: cbc79a0d8ac5c859f1bfd858735a08d04e642a9342e677e23c406fca9f8619c0
x86_64
qemu-img-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 31a73d9d5ad5bc2425a2372a65ec3582599b0ee11ae8724ee020665a44a7deb6
qemu-kvm-common-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 22f427679165fc0014474d05d8553cf6475388bc0d20cba4c726ad0ae7a954b5
qemu-kvm-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: c4c75d1aa54b06a70b5a73573aa6c728136d26b64dbdac06947a3cbb0db5a52f
qemu-kvm-rhev-debuginfo-2.10.0-21.el7.x86_64.rpm	SHA-256: 36149db9712cf5281389c21131cfdfa9a33ffb835ba3263907c5373b925919e4
qemu-kvm-tools-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 0aca8b45b8edd3844eabacd58566152c651517f155e1bebaf1e163796682a98d

Red Hat OpenStack 9

SRPM
qemu-kvm-rhev-2.10.0-21.el7.src.rpm	SHA-256: cbc79a0d8ac5c859f1bfd858735a08d04e642a9342e677e23c406fca9f8619c0
x86_64
qemu-img-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 31a73d9d5ad5bc2425a2372a65ec3582599b0ee11ae8724ee020665a44a7deb6
qemu-kvm-common-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 22f427679165fc0014474d05d8553cf6475388bc0d20cba4c726ad0ae7a954b5
qemu-kvm-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: c4c75d1aa54b06a70b5a73573aa6c728136d26b64dbdac06947a3cbb0db5a52f
qemu-kvm-rhev-debuginfo-2.10.0-21.el7.x86_64.rpm	SHA-256: 36149db9712cf5281389c21131cfdfa9a33ffb835ba3263907c5373b925919e4
qemu-kvm-tools-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 0aca8b45b8edd3844eabacd58566152c651517f155e1bebaf1e163796682a98d

Red Hat OpenStack 8

SRPM
qemu-kvm-rhev-2.10.0-21.el7.src.rpm	SHA-256: cbc79a0d8ac5c859f1bfd858735a08d04e642a9342e677e23c406fca9f8619c0
x86_64
qemu-img-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 31a73d9d5ad5bc2425a2372a65ec3582599b0ee11ae8724ee020665a44a7deb6
qemu-kvm-common-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 22f427679165fc0014474d05d8553cf6475388bc0d20cba4c726ad0ae7a954b5
qemu-kvm-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: c4c75d1aa54b06a70b5a73573aa6c728136d26b64dbdac06947a3cbb0db5a52f
qemu-kvm-rhev-debuginfo-2.10.0-21.el7.x86_64.rpm	SHA-256: 36149db9712cf5281389c21131cfdfa9a33ffb835ba3263907c5373b925919e4
qemu-kvm-tools-rhev-2.10.0-21.el7.x86_64.rpm	SHA-256: 0aca8b45b8edd3844eabacd58566152c651517f155e1bebaf1e163796682a98d

Red Hat OpenStack for IBM Power 12

SRPM
ppc64le
qemu-img-rhev-2.10.0-21.el7.ppc64le.rpm	SHA-256: cbf4ba869b693ef6e014bf6b35d85c007fcf02d655b89307cd05488f7b875f28
qemu-kvm-common-rhev-2.10.0-21.el7.ppc64le.rpm	SHA-256: 4337dedd46d76487068ee14a0bf8224f04c148fdc7d02462b2e785d6b42fffdb
qemu-kvm-rhev-2.10.0-21.el7.ppc64le.rpm	SHA-256: 01e11fad640819ad3bc35068841d8e36d110188889492b22ac97a03cef45ee5c
qemu-kvm-rhev-debuginfo-2.10.0-21.el7.ppc64le.rpm	SHA-256: 6fe0f747b8a773b605424901619fe83a4e6fccb83fb0ae4915332b7142c39b12
qemu-kvm-tools-rhev-2.10.0-21.el7.ppc64le.rpm	SHA-256: a604782b90f1d8be0b7c542a4fe009ae29e3f0aa86ee06679dda061f78dd533d