Executive Summary
Summary | |
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Title | qemu-kvm security update |
Informations | |||
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Name | RHSA-2015:1943 | First vendor Publication | 2015-10-27 |
Vendor | RedHat | Last vendor Modification | 2015-10-27 |
Severity (Vendor) | Moderate | 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:N/AC:L/Au:N/C:N/I:N/A:C) | |||
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Cvss Base Score | 7.8 | Attack Range | Network |
Cvss Impact Score | 6.9 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Problem Description: Updated qemu-kvm packages that fix one security issue are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate 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 Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - 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 QEMU's websocket frame decoder processed incoming frames without limiting resources used to process the header and the payload. An attacker able to access a guest's VNC console could use this flaw to trigger a denial of service on the host by exhausting all available memory and CPU. (CVE-2015-1779) This issue was discovered by Daniel P. Berrange of Red Hat. 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/): 1199572 - CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder 1273098 - qemu-kvm build failure race condition in tests/ide-test |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2015-1943.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-400 | Uncontrolled Resource Consumption ('Resource Exhaustion') |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
Date | Description |
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2016-12-05 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_a228c7a0ba6611e6b1cf14dae9d210b8.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 |
2016-04-13 | 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 |
2016-02-05 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201602-01.nasl - Type : ACT_GATHER_INFO |
2015-10-29 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2015-1943.nasl - Type : ACT_GATHER_INFO |
2015-10-28 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20151027_qemu_kvm_on_SL7_x.nasl - Type : ACT_GATHER_INFO |
2015-10-28 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2015-1943.nasl - Type : ACT_GATHER_INFO |
2015-10-28 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2015-1943.nasl - Type : ACT_GATHER_INFO |
2015-05-14 | Name : The remote SuSE 11 host is missing a security update. File : suse_11_kvm-150428.nasl - Type : ACT_GATHER_INFO |
2015-05-13 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2608-1.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 |
2015-04-28 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2015-210.nasl - Type : ACT_GATHER_INFO |
2015-04-22 | Name : The remote Fedora host is missing a security update. File : fedora_2015-5541.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 |
Alert History
Date | Informations |
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2016-01-20 21:26:07 |
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2016-01-15 21:28:43 |
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2016-01-13 00:27:02 |
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2015-12-05 13:28:25 |
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2015-10-30 13:24:40 |
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2015-10-29 13:24:02 |
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2015-10-27 13:21:51 |
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