RHSA-2018:2822 - Security Advisory

Topic

An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 8.0 (Liberty), Red Hat OpenStack Platform 9.0 (Mitaka), Red Hat OpenStack Platform 10.0 (Newton), Red Hat OpenStack Platform 12.0 (Pike), and Red Hat OpenStack Platform 13.0 (Queens).

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.

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):

• QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams (CVE-2018-11806)

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 Jskz - Zero Day Initiative (trendmicro.com) for
reporting this issue.

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 for IBM Power 13 ppc64le
• Red Hat OpenStack for IBM Power 12 ppc64le
• Red Hat OpenStack 13 x86_64
• Red Hat OpenStack 12 x86_64
• Red Hat OpenStack 10 x86_64
• Red Hat OpenStack 9 x86_64
• Red Hat OpenStack 8 x86_64

Fixes

• BZ - 1586245 - CVE-2018-11806 QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams

CVEs

• CVE-2018-11806

References

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