Executive Summary

Summary
Title QEMU vulnerabilities
Informations
Name USN-2724-1 First vendor Publication 2015-08-27
Vendor Ubuntu Last vendor Modification 2015-08-27
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.04 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in QEMU.

Software Description: - qemu: Machine emulator and virtualizer - qemu-kvm: Machine emulator and virtualizer

Details:

It was discovered that QEMU incorrectly handled a PRDT with zero complete sectors in the IDE functionality. A malicious guest could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-9718)

Donghai Zhu discovered that QEMU incorrectly handled the RTL8139 driver. A malicious guest could possibly use this issue to read sensitive information from arbitrary host memory. (CVE-2015-5165)

Donghai Zhu discovered that QEMU incorrectly handled unplugging emulated block devices. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 15.04. (CVE-2015-5166)

Qinghao Tang and Mr. Zuozhi discovered that QEMU incorrectly handled memory in the VNC display driver. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 15.04. (CVE-2015-5225)

It was discovered that QEMU incorrectly handled the virtio-serial device. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-5745)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 15.04:
qemu-system 1:2.2+dfsg-5expubuntu9.4
qemu-system-aarch64 1:2.2+dfsg-5expubuntu9.4
qemu-system-arm 1:2.2+dfsg-5expubuntu9.4
qemu-system-mips 1:2.2+dfsg-5expubuntu9.4
qemu-system-misc 1:2.2+dfsg-5expubuntu9.4
qemu-system-ppc 1:2.2+dfsg-5expubuntu9.4
qemu-system-sparc 1:2.2+dfsg-5expubuntu9.4
qemu-system-x86 1:2.2+dfsg-5expubuntu9.4

Ubuntu 14.04 LTS:
qemu-system 2.0.0+dfsg-2ubuntu1.17
qemu-system-aarch64 2.0.0+dfsg-2ubuntu1.17
qemu-system-arm 2.0.0+dfsg-2ubuntu1.17
qemu-system-mips 2.0.0+dfsg-2ubuntu1.17
qemu-system-misc 2.0.0+dfsg-2ubuntu1.17
qemu-system-ppc 2.0.0+dfsg-2ubuntu1.17
qemu-system-sparc 2.0.0+dfsg-2ubuntu1.17
qemu-system-x86 2.0.0+dfsg-2ubuntu1.17

Ubuntu 12.04 LTS:
qemu-kvm 1.0+noroms-0ubuntu14.24

After a standard system update you need to restart all QEMU virtual machines to make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2724-1
CVE-2014-9718, CVE-2015-5165, CVE-2015-5166, CVE-2015-5225,
CVE-2015-5745

Package Information:
https://launchpad.net/ubuntu/+source/qemu/1:2.2+dfsg-5expubuntu9.4
https://launchpad.net/ubuntu/+source/qemu/2.0.0+dfsg-2ubuntu1.17
https://launchpad.net/ubuntu/+source/qemu-kvm/1.0+noroms-0ubuntu14.24

Original Source

Url : http://www.ubuntu.com/usn/USN-2724-1

CWE : Common Weakness Enumeration

% Id Name
33 % CWE-399 Resource Management Errors
33 % CWE-264 Permissions, Privileges, and Access Controls
33 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 143
Application 3
Application 1
Application 1
Application 17
Os 4
Os 2
Os 3
Os 1
Os 7
Os 1
Os 1
Os 1
Os 2
Os 8
Os 2
Os 2
Os 4
Os 7
Os 1
Os 2
Os 3
Os 5
Os 2
Os 2
Os 95

Information Assurance Vulnerability Management (IAVM)

Date Description
2015-08-27 IAVM : 2015-A-0202 - Citrix XenServer Information Disclosure Vulnerability
Severity : Category I - VMSKEY : V0061343

Nessus® Vulnerability Scanner

Date Description
2016-08-29 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1785-1.nasl - Type : ACT_GATHER_INFO
2016-08-29 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1745-1.nasl - Type : ACT_GATHER_INFO
2016-08-29 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1698-1.nasl - Type : ACT_GATHER_INFO
2016-06-17 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1560-1.nasl - Type : ACT_GATHER_INFO
2016-05-25 Name : The remote OracleVM host is missing a security update.
File : oraclevm_OVMSA-2016-0051.nasl - Type : ACT_GATHER_INFO
2016-05-19 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1318-1.nasl - Type : ACT_GATHER_INFO
2016-05-18 Name : The remote Debian host is missing a security update.
File : debian_DLA-479.nasl - Type : ACT_GATHER_INFO
2016-04-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-439.nasl - Type : ACT_GATHER_INFO
2016-04-07 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0955-1.nasl - Type : ACT_GATHER_INFO
2016-04-01 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-413.nasl - Type : ACT_GATHER_INFO
2016-03-25 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0873-1.nasl - Type : ACT_GATHER_INFO
2016-02-17 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL63519101.nasl - Type : ACT_GATHER_INFO
2016-02-05 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201602-01.nasl - Type : ACT_GATHER_INFO
2016-01-04 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_2b3b4c27b0c711e58d13bc5ff45d0f28.nasl - Type : ACT_GATHER_INFO
2015-11-18 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2015-750.nasl - Type : ACT_GATHER_INFO
2015-11-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2015-729.nasl - Type : ACT_GATHER_INFO
2015-10-22 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-1833.nasl - Type : ACT_GATHER_INFO
2015-10-22 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-1793.nasl - Type : ACT_GATHER_INFO
2015-10-12 Name : The remote Fedora host is missing a security update.
File : fedora_2015-16368.nasl - Type : ACT_GATHER_INFO
2015-09-30 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1643-1.nasl - Type : ACT_GATHER_INFO
2015-09-28 Name : The remote Fedora host is missing a security update.
File : fedora_2015-15946.nasl - Type : ACT_GATHER_INFO
2015-09-28 Name : The remote Fedora host is missing a security update.
File : fedora_2015-15944.nasl - Type : ACT_GATHER_INFO
2015-09-23 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-1833.nasl - Type : ACT_GATHER_INFO
2015-09-23 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20150922_qemu_kvm_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2015-09-23 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-1833.nasl - Type : ACT_GATHER_INFO
2015-09-21 Name : The remote Fedora host is missing a security update.
File : fedora_2015-15364.nasl - Type : ACT_GATHER_INFO
2015-09-18 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-1740.nasl - Type : ACT_GATHER_INFO
2015-09-17 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-1793.nasl - Type : ACT_GATHER_INFO
2015-09-16 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20150915_qemu_kvm_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2015-09-16 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-1793.nasl - Type : ACT_GATHER_INFO
2015-09-04 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1479-2.nasl - Type : ACT_GATHER_INFO
2015-09-04 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1479-1.nasl - Type : ACT_GATHER_INFO
2015-09-04 Name : The remote Fedora host is missing a security update.
File : fedora_2015-14783.nasl - Type : ACT_GATHER_INFO
2015-09-03 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3349.nasl - Type : ACT_GATHER_INFO
2015-09-03 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3348.nasl - Type : ACT_GATHER_INFO
2015-09-02 Name : The remote Fedora host is missing a security update.
File : fedora_2015-13404.nasl - Type : ACT_GATHER_INFO
2015-09-02 Name : The remote Fedora host is missing a security update.
File : fedora_2015-14361.nasl - Type : ACT_GATHER_INFO
2015-08-28 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2724-1.nasl - Type : ACT_GATHER_INFO
2015-08-27 Name : The remote host is affected by an information disclosure vulnerability.
File : citrix_xenserver_CTX201717.nasl - Type : ACT_GATHER_INFO
2015-08-24 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1421-1.nasl - Type : ACT_GATHER_INFO
2015-08-24 Name : The remote Fedora host is missing a security update.
File : fedora_2015-13358.nasl - Type : ACT_GATHER_INFO
2015-08-21 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1408-1.nasl - Type : ACT_GATHER_INFO
2015-08-19 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1404-1.nasl - Type : ACT_GATHER_INFO
2015-08-18 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1384-1.nasl - Type : ACT_GATHER_INFO
2015-08-18 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_f06f20dc434711e593ad002590263bf5.nasl - Type : ACT_GATHER_INFO
2015-08-18 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_ee99899d434711e593ad002590263bf5.nasl - Type : ACT_GATHER_INFO
2015-08-18 Name : The remote Fedora host is missing a security update.
File : fedora_2015-13402.nasl - Type : ACT_GATHER_INFO
2015-08-05 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2015-0112.nasl - Type : ACT_GATHER_INFO
2015-08-05 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2015-0111.nasl - Type : ACT_GATHER_INFO
2015-05-13 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3259.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2016-01-20 21:26:10
  • Multiple Updates
2015-11-07 05:26:38
  • Multiple Updates
2015-08-29 13:33:56
  • Multiple Updates
2015-08-27 17:37:32
  • First insertion