Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title QEMU vulnerabilities
Informations
Name USN-3649-1 First vendor Publication 2018-05-16
Vendor Ubuntu Last vendor Modification 2018-05-16
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 18.04 LTS - Ubuntu 17.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in QEMU.

Software Description: - qemu: Machine emulator and virtualizer

Details:

Cyrille Chatras discovered that QEMU incorrectly handled certain PS2 values during migration. An attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2017-16845)

Cyrille Chatras discovered that QEMU incorrectly handled multiboot. An attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2018-7550)

Ross Lagerwall discovered that QEMU incorrectly handled the Cirrus VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS. (CVE-2018-7858)

Update instructions:

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

Ubuntu 18.04 LTS:
qemu-system 1:2.11+dfsg-1ubuntu7.1
qemu-system-arm 1:2.11+dfsg-1ubuntu7.1
qemu-system-mips 1:2.11+dfsg-1ubuntu7.1
qemu-system-ppc 1:2.11+dfsg-1ubuntu7.1
qemu-system-s390x 1:2.11+dfsg-1ubuntu7.1
qemu-system-sparc 1:2.11+dfsg-1ubuntu7.1
qemu-system-x86 1:2.11+dfsg-1ubuntu7.1

Ubuntu 17.10:
qemu-system 1:2.10+dfsg-0ubuntu3.6
qemu-system-aarch64 1:2.10+dfsg-0ubuntu3.6
qemu-system-arm 1:2.10+dfsg-0ubuntu3.6
qemu-system-mips 1:2.10+dfsg-0ubuntu3.6
qemu-system-ppc 1:2.10+dfsg-0ubuntu3.6
qemu-system-s390x 1:2.10+dfsg-0ubuntu3.6
qemu-system-sparc 1:2.10+dfsg-0ubuntu3.6
qemu-system-x86 1:2.10+dfsg-0ubuntu3.6

Ubuntu 16.04 LTS:
qemu-system 1:2.5+dfsg-5ubuntu10.28
qemu-system-aarch64 1:2.5+dfsg-5ubuntu10.28
qemu-system-arm 1:2.5+dfsg-5ubuntu10.28
qemu-system-mips 1:2.5+dfsg-5ubuntu10.28
qemu-system-ppc 1:2.5+dfsg-5ubuntu10.28
qemu-system-s390x 1:2.5+dfsg-5ubuntu10.28
qemu-system-sparc 1:2.5+dfsg-5ubuntu10.28
qemu-system-x86 1:2.5+dfsg-5ubuntu10.28

Ubuntu 14.04 LTS:
qemu-system 2.0.0+dfsg-2ubuntu1.41
qemu-system-aarch64 2.0.0+dfsg-2ubuntu1.41
qemu-system-arm 2.0.0+dfsg-2ubuntu1.41
qemu-system-mips 2.0.0+dfsg-2ubuntu1.41
qemu-system-ppc 2.0.0+dfsg-2ubuntu1.41
qemu-system-sparc 2.0.0+dfsg-2ubuntu1.41
qemu-system-x86 2.0.0+dfsg-2ubuntu1.41

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

References:
https://usn.ubuntu.com/usn/usn-3649-1
CVE-2017-16845, CVE-2018-7550, CVE-2018-7858

Package Information:
https://launchpad.net/ubuntu/+source/qemu/1:2.11+dfsg-1ubuntu7.1
https://launchpad.net/ubuntu/+source/qemu/1:2.10+dfsg-0ubuntu3.6
https://launchpad.net/ubuntu/+source/qemu/1:2.5+dfsg-5ubuntu10.28
https://launchpad.net/ubuntu/+source/qemu/2.0.0+dfsg-2ubuntu1.41

Original Source

Url : http://www.ubuntu.com/usn/USN-3649-1

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-125 Out-of-bounds Read
25 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)
25 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 176
Os 6
Os 3
Os 1
Os 2
Os 2
Os 2
Os 3
Os 2
Os 2

Nessus® Vulnerability Scanner

Date Description
2019-01-10 Name : The remote device is affected by multiple vulnerabilities.
File : juniper_space_jsa10917_183R1.nasl - Type : ACT_GATHER_INFO
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-74fb8b257b.nasl - Type : ACT_GATHER_INFO
2018-09-27 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1314.nasl - Type : ACT_GATHER_INFO
2018-09-27 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1313.nasl - Type : ACT_GATHER_INFO
2018-09-19 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1073.nasl - Type : ACT_GATHER_INFO
2018-09-18 Name : The remote EulerOS Virtualization host is missing a security update.
File : EulerOS_SA-2018-1268.nasl - Type : ACT_GATHER_INFO
2018-09-07 Name : The remote Debian host is missing a security update.
File : debian_DLA-1497.nasl - Type : ACT_GATHER_INFO
2018-09-07 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1073.nasl - Type : ACT_GATHER_INFO
2018-08-21 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-2462.nasl - Type : ACT_GATHER_INFO
2018-07-16 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-2162.nasl - Type : ACT_GATHER_INFO
2018-07-03 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1201.nasl - Type : ACT_GATHER_INFO
2018-06-12 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1034.nasl - Type : ACT_GATHER_INFO
2018-06-12 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1034.nasl - Type : ACT_GATHER_INFO
2018-05-31 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-1416.nasl - Type : ACT_GATHER_INFO
2018-05-30 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4213.nasl - Type : ACT_GATHER_INFO
2018-05-29 Name : The remote EulerOS host is missing a security update.
File : EulerOS_SA-2018-1145.nasl - Type : ACT_GATHER_INFO
2018-05-29 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1144.nasl - Type : ACT_GATHER_INFO
2018-04-18 Name : The remote Debian host is missing a security update.
File : debian_DLA-1351.nasl - Type : ACT_GATHER_INFO
2018-04-18 Name : The remote Debian host is missing a security update.
File : debian_DLA-1350.nasl - Type : ACT_GATHER_INFO
2018-04-10 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201804-08.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
Date Informations
2019-01-08 00:18:59
  • First insertion