CentOS ProjectCESA-2016:1585qemu security update
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
22.9%
CentOS Errata and Security Advisory CESA-2016:1585
KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm packages provide the user-space component for running virtual machines using KVM.
Security Fix(es):
- Quick emulator(Qemu) built with the virtio framework is vulnerable to an unbounded memory allocation issue. It was found that a malicious guest user could submit more requests than the virtqueue size permits. Processing a request allocates a VirtQueueElement and therefore causes unbounded memory allocation on the host controlled by the guest. (CVE-2016-5403)
Red Hat would like to thank hongzhenhao (Marvel Team) for reporting this issue.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2016-August/084192.html
Affected packages:
qemu-guest-agent
qemu-img
qemu-kvm
qemu-kvm-tools
Upstream details at:
https://access.redhat.com/errata/RHSA-2016:1585
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| CentOS | 6 | i686 | qemu-guest-agent | < 0.12.1.2-2.491.el6_8.3 | qemu-guest-agent-0.12.1.2-2.491.el6_8.3.i686.rpm |
| CentOS | 6 | x86_64 | qemu-guest-agent | < 0.12.1.2-2.491.el6_8.3 | qemu-guest-agent-0.12.1.2-2.491.el6_8.3.x86_64.rpm |
| CentOS | 6 | x86_64 | qemu-img | < 0.12.1.2-2.491.el6_8.3 | qemu-img-0.12.1.2-2.491.el6_8.3.x86_64.rpm |
| CentOS | 6 | x86_64 | qemu-kvm | < 0.12.1.2-2.491.el6_8.3 | qemu-kvm-0.12.1.2-2.491.el6_8.3.x86_64.rpm |
| CentOS | 6 | x86_64 | qemu-kvm-tools | < 0.12.1.2-2.491.el6_8.3 | qemu-kvm-tools-0.12.1.2-2.491.el6_8.3.x86_64.rpm |
Related
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
22.9%