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Red Hat Product Errata RHSA-2015:1739 - Security Advisory
Issued:
2015-09-07
Updated:
2015-09-07

RHSA-2015:1739 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: qemu-kvm-rhev security update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

Updated qemu-kvm-rhev packages that fix one security issue are now
available for Red Hat Enterprise Virtualization Hypervisor 7.

Red Hat Product Security has rated this update as having Moderate 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.

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.

An information leak flaw was found in the way QEMU's RTL8139 emulation
implementation processed network packets under RTL8139 controller's C+ mode
of operation. An unprivileged guest user could use this flaw to read up to
65 KB of uninitialized QEMU heap memory. (CVE-2015-5165)

Red Hat would like to thank the Xen project for reporting this issue.
Upstream acknowledges Donghai Zhu of Alibaba as the original reporter.

All qemu-kvm-rhev users 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.

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

Affected Products

  • Red Hat Virtualization 3 for RHEL 7 x86_64

Fixes

  • BZ - 1248382 - migration/rdma: 7.1->7.2: RDMA ERROR: ram blocks mismatch #3!
  • BZ - 1248760 - CVE-2015-5165 Qemu: rtl8139 uninitialized heap memory information leakage to guest (XSA-140)

CVEs

  • CVE-2015-5165

References

  • https://access.redhat.com/security/updates/classification/#moderate
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Virtualization 3 for RHEL 7

SRPM
qemu-kvm-rhev-2.1.2-23.el7_1.8.src.rpm SHA-256: 5a204ee8b4b5a840b889b5685a06fe20d3febf7770706c68af4398bb10636657
x86_64
libcacard-devel-rhev-2.1.2-23.el7_1.8.x86_64.rpm SHA-256: a948204698ff24306291d63c0b08d592ea802e355e3063d863f67e3818c1de1f
libcacard-rhev-2.1.2-23.el7_1.8.x86_64.rpm SHA-256: 0a27a6c89cf60a196f08df3f59ed181339de8a31dd4ac4b24516a28a0b0d5912
libcacard-tools-rhev-2.1.2-23.el7_1.8.x86_64.rpm SHA-256: 665d62e42cb6ee748b97c3649117429943a358707522f3c99a9544df6f6b3e0e
qemu-img-rhev-2.1.2-23.el7_1.8.x86_64.rpm SHA-256: 051eccb864d190d82659648022cf40b209189f6fbc4eaab16e1995873da90278
qemu-kvm-common-rhev-2.1.2-23.el7_1.8.x86_64.rpm SHA-256: 178d382a01e65cf82403acf68950c2bd99af3f19e3a6e2c0c371bfb5866628fa
qemu-kvm-rhev-2.1.2-23.el7_1.8.x86_64.rpm SHA-256: f7206fd580793b77fc7a616f4452de6d632112364a2b12356c594bbf728ef8f2
qemu-kvm-rhev-debuginfo-2.1.2-23.el7_1.8.x86_64.rpm SHA-256: a6df340ae207b44ae626eaa5c26ff7fac095b7b6d13ad8a6bc495a7891a29f39
qemu-kvm-tools-rhev-2.1.2-23.el7_1.8.x86_64.rpm SHA-256: 30997759df8a254416674aba102325854447f63f1949fc7a15f7d20ef8a6ccfc

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

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