Executive Summary
Summary | |
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Title | qemu-kvm security and bug fix update |
Informations | |||
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Name | RHSA-2015:0867 | First vendor Publication | 2015-04-21 |
Vendor | RedHat | Last vendor Modification | 2015-04-21 |
Severity (Vendor) | Important | Revision | 01 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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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:P/I:P/A:P) | |||
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Cvss Base Score | 4.6 | Attack Range | Local |
Cvss Impact Score | 6.4 | Attack Complexity | Low |
Cvss Expoit Score | 3.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Problem Description: An updated qemu-kvm package that fixes one security issue and one bug is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the user-space component for running virtual machines using KVM. It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM- allocated buffer boundaries in the host's QEMU process address space with attacker-provided data. (CVE-2014-8106) This issue was found by Paolo Bonzini of Red Hat. This update also fixes the following bug: * Previously, the effective downtime during the last phase of a live migration would sometimes be much higher than the maximum downtime specified by 'migration_downtime' in vdsm.conf. This problem has been corrected. The value of 'migration_downtime' is now honored and the migration is aborted if the downtime cannot be achieved. (BZ#1142756) All qemu-kvm 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. 4. 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1169454 - CVE-2014-8106 qemu: cirrus: insufficient blit region checks |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2015-0867.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-119 | Failure to Constrain Operations within the Bounds of a Memory Buffer |
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: | |||
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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: | |||
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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: | |||
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CPE : Common Platform Enumeration
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 |
2014-12-15 | 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 |
2014-12-05 | 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
Date | Informations |
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2016-01-20 21:26:04 |
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2015-12-05 13:27:59 |
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2015-04-24 13:28:59 |
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2015-04-23 13:30:45 |
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2015-04-21 21:26:03 |
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