Executive Summary

Summary
Title QEMU vulnerabilities
Informations
Name USN-2439-1 First vendor Publication 2014-12-11
Vendor Ubuntu Last vendor Modification 2014-12-11
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:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in QEMU.

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

Details:

Michael S. Tsirkin discovered that QEMU incorrectly handled certain parameters during ram load while performing a migration. An attacker able to manipulate savevm data could use this issue to possibly execute arbitrary code on the host. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, and Ubuntu 14.10. (CVE-2014-7840)

Paolo Bonzini discovered that QEMU incorrectly handled memory in the Cirrus VGA device. A malicious guest could possibly use this issue to write into memory of the host, leading to privilege escalation. (CVE-2014-8106)

Update instructions:

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

Ubuntu 14.10:
qemu-system 2.1+dfsg-4ubuntu6.3
qemu-system-aarch64 2.1+dfsg-4ubuntu6.3
qemu-system-arm 2.1+dfsg-4ubuntu6.3
qemu-system-mips 2.1+dfsg-4ubuntu6.3
qemu-system-misc 2.1+dfsg-4ubuntu6.3
qemu-system-ppc 2.1+dfsg-4ubuntu6.3
qemu-system-sparc 2.1+dfsg-4ubuntu6.3
qemu-system-x86 2.1+dfsg-4ubuntu6.3

Ubuntu 14.04 LTS:
qemu-system 2.0.0+dfsg-2ubuntu1.9
qemu-system-aarch64 2.0.0+dfsg-2ubuntu1.9
qemu-system-arm 2.0.0+dfsg-2ubuntu1.9
qemu-system-mips 2.0.0+dfsg-2ubuntu1.9
qemu-system-misc 2.0.0+dfsg-2ubuntu1.9
qemu-system-ppc 2.0.0+dfsg-2ubuntu1.9
qemu-system-sparc 2.0.0+dfsg-2ubuntu1.9
qemu-system-x86 2.0.0+dfsg-2ubuntu1.9

Ubuntu 12.04 LTS:
qemu-kvm 1.0+noroms-0ubuntu14.21

Ubuntu 10.04 LTS:
qemu-kvm 0.12.3+noroms-0ubuntu9.26

After a standard system update you need to reboot your computer to make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2439-1
CVE-2014-7840, CVE-2014-8106

Package Information:
https://launchpad.net/ubuntu/+source/qemu/2.1+dfsg-4ubuntu6.3
https://launchpad.net/ubuntu/+source/qemu/2.0.0+dfsg-2ubuntu1.9
https://launchpad.net/ubuntu/+source/qemu-kvm/1.0+noroms-0ubuntu14.21
https://launchpad.net/ubuntu/+source/qemu-kvm/0.12.3+noroms-0ubuntu9.26

Original Source

Url : http://www.ubuntu.com/usn/USN-2439-1

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer
50 % CWE-20 Improper Input Validation

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:27930
 
Oval ID: oval:org.mitre.oval:def:27930
Title: DSA-3087-1 -- qemu security update
Description: Paolo Bonzini of Red Hat discovered that the blit region checks were insufficient in the Cirrus VGA emulator in qemu, a fast processor emulator. A privileged guest user could use this flaw to write into qemu address space on the host, potentially escalating their privileges to those of the qemu host process.
Family: unix Class: patch
Reference(s): DSA-3087-1
CVE-2014-8106
Version: 3
Platform(s): Debian GNU/Linux 7.0
Debian GNU/kFreeBSD 7.0
Product(s): qemu
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28240
 
Oval ID: oval:org.mitre.oval:def:28240
Title: DSA-3088-1 -- qemu-kvm security update
Description: Paolo Bonzini of Red Hat discovered that the blit region checks were insufficient in the Cirrus VGA emulator in qemu-kvm, a full virtualization solution on x86 hardware. A privileged guest user could use this flaw to write into qemu address space on the host, potentially escalating their privileges to those of the qemu host process.
Family: unix Class: patch
Reference(s): DSA-3088-1
CVE-2014-8106
Version: 3
Platform(s): Debian GNU/Linux 7.0
Debian GNU/kFreeBSD 7.0
Product(s): qemu-kvm
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28497
 
Oval ID: oval:org.mitre.oval:def:28497
Title: USN-2439-1 -- QEMU vulnerabilities
Description: Michael S. Tsirkin discovered that QEMU incorrectly handled certain parameters during ram load while performing a migration. An attacker able to manipulate savevm data could use this issue to possibly execute arbitrary code on the host. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, and Ubuntu 14.10. (<a href="http://people.ubuntu.com/~ubuntu-security/cve/CVE-2014-7840">CVE-2014-7840</a>) Paolo Bonzini discovered that QEMU incorrectly handled memory in the Cirrus VGA device. A malicious guest could possibly use this issue to write into memory of the host, leading to privilege escalation. (<a href="http://people.ubuntu.com/~ubuntu-security/cve/CVE-2014-8106">CVE-2014-8106</a>)
Family: unix Class: patch
Reference(s): USN-2439-1
CVE-2014-7840
CVE-2014-8106
Version: 3
Platform(s): Ubuntu 14.10
Ubuntu 14.04
Ubuntu 12.04
Ubuntu 10.04
Product(s): qemu
qemu-kvm
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 134
Os 1
Os 5
Os 1
Os 4
Os 1

Nessus® Vulnerability Scanner

Date Description
2017-05-04 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2017-0096.nasl - Type : ACT_GATHER_INFO
2017-05-04 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2017-0095.nasl - Type : ACT_GATHER_INFO
2017-03-20 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0718-1.nasl - Type : ACT_GATHER_INFO
2017-03-10 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0647-1.nasl - Type : ACT_GATHER_INFO
2017-03-01 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0582-1.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
2015-05-20 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-0349-1.nasl - Type : ACT_GATHER_INFO
2015-04-30 Name : The remote host is missing a vendor-supplied security patch.
File : citrix_xenserver_CTX200892.nasl - Type : ACT_GATHER_INFO
2015-04-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-0868.nasl - Type : ACT_GATHER_INFO
2015-04-23 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-0867.nasl - Type : ACT_GATHER_INFO
2015-04-22 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20150421_qemu_kvm_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2015-04-22 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-0867.nasl - Type : ACT_GATHER_INFO
2015-04-22 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-0867.nasl - Type : ACT_GATHER_INFO
2015-04-14 Name : The remote Fedora host is missing a security update.
File : fedora_2015-5482.nasl - Type : ACT_GATHER_INFO
2015-03-26 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20150305_qemu_kvm_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2015-03-19 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2015-061.nasl - Type : ACT_GATHER_INFO
2015-03-18 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-0349.nasl - Type : ACT_GATHER_INFO
2015-03-13 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-0349.nasl - Type : ACT_GATHER_INFO
2015-03-06 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-0624.nasl - Type : ACT_GATHER_INFO
2015-03-05 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-0349.nasl - Type : ACT_GATHER_INFO
2015-02-24 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_kvm-libvirt-201412-150124.nasl - Type : ACT_GATHER_INFO
2015-02-24 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_kvm-libvirt-201412-150123.nasl - Type : ACT_GATHER_INFO
2015-02-18 Name : The remote Fedora host is missing a security update.
File : fedora_2015-1886.nasl - Type : ACT_GATHER_INFO
2014-12-26 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201412-37.nasl - Type : ACT_GATHER_INFO
2014-12-26 Name : The remote Fedora host is missing a security update.
File : fedora_2014-16626.nasl - Type : ACT_GATHER_INFO
2014-12-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2439-1.nasl - Type : ACT_GATHER_INFO
2014-12-15 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2014-249.nasl - Type : ACT_GATHER_INFO
2014-12-15 Name : The remote Fedora host is missing a security update.
File : fedora_2014-16075.nasl - Type : ACT_GATHER_INFO
2014-12-05 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3087.nasl - Type : ACT_GATHER_INFO
2014-12-05 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3088.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
4
Date Informations
2016-01-20 21:26:09
  • Multiple Updates
2014-12-16 13:25:52
  • Multiple Updates
2014-12-16 00:27:10
  • Multiple Updates
2014-12-12 21:27:00
  • Multiple Updates
2014-12-11 21:22:19
  • First insertion