SUSE-SU-2018:1816-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP3 RT kernel was updated to 4.4.138 to receive various security and bugfixes. The following security bugs were fixed: - CVE-2018-12233: A memory corruption bug in JFS could have been triggered by calling setxattr twice with two different extended attribute names on t...

KVM Nest Virtualization L1 Guest Privilege Escalation

KVM nested virtualization: privilege escalation in L1 guest When KVM on Intel virtualizes another hypervisor as L1 VM it does not verify that VMX instructions from the L1 VM which trigger a VM exit and are emulated by L0 KVM are coming from ring 0. For code running on bare metal or VMX root mode...

KVM (Nested Virtualization) - L1 Guest Privilege Escalation

KVM Nested Virtualization - L1 Guest Privilege Escalation When KVM on Intel virtualizes another hypervisor as L1 VM it does not verify that VMX instructions from the L1 VM which trigger a VM exit and are emulated by L0 KVM are coming from ring 0. For code running on bare metal or VMX root mode th...

KVM (Nested Virtualization) - L1 Guest Privilege Escalation Vulnerability

Exploit for linux platform in category dos / poc When KVM on Intel virtualizes another hypervisor as L1 VM it does not verify that VMX instructions from the L1 VM which trigger a VM exit and are emulated by L0 KVM are coming from ring 0. For code running on bare metal or VMX root mode this is...

KVM (Nested Virtualization) - L1 Guest Privilege Escalation

When KVM on Intel virtualizes another hypervisor as L1 VM it does not verify that VMX instructions from the L1 VM which trigger a VM exit and are emulated by L0 KVM are coming from ring 0. For code running on bare metal or VMX root mode this is enforced by hardware. However, for code running in L...

SUSE SLES11 Security Update : cobbler (SUSE-SU-2018:1741-1)

This update for cobbler fixes the following issues : - CVE-2017-1000469: Escape shell parameters provided by the user for the reposync action. bsc1074594 - Fix for calling koan with virttype kvm. bsc1090205 Note that Tenable Network Security has extracted the preceding description block directly...

openSUSE Security Update : the Linux Kernel (openSUSE-2018-656) (Spectre)

The openSUSE Leap 42.3 was updated to 4.4.138 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-3639: Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes...

SUSE-SU-2018:1741-1 Security update for cobbler

This update for cobbler fixes the following issues: - CVE-2017-1000469: Escape shell parameters provided by the user for the reposync action. bsc1074594 - Fix for calling koan with virttype kvm. bsc1090205...

Security Bulletin: IBM PurePower Integrated Manager has released instructions in response to the vulnerabilities known as Spectre and Meltdown

Summary IBM has released the following instructions for IBM PurePower Integrated Manager in response to CVE-2017-5753, CVE-2017-5715 and CVE-2017-5754. RHEL Server is shipped as a component of PPIM. Information about a security vulnerability affecting RHEL Server has been published in a Red Hat...

Security Bulletin: PowerKVM has released updates in response to the vulnerabilities known as Spectre and Meltdown.

Summary PowerKVM may be affected by vulnerabilities in the Linux kernel. IBM has now addressed these vulnerabilities. IBM has released the following updates for PowerKVM in response to CVE-2017-5753, CVE-2017-5715 and CVE-2017-5754. Vulnerability Details CVEID: CVE-2017-5753 CVEID: CVE-2017-5715...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4134)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4134 advisory. - x86/fpu: Make eager FPU default Mihai Carabas Orabug: 28156176 CVE-2018-3665 - KVM: Fix stack-out-of-bounds read in writemmio Wanpeng Li Orabug:...

OracleVM 3.3 : Unbreakable / etc (OVMSA-2018-0231)

The remote OracleVM system is missing necessary patches to address critical security updates : - x86/fpu: Make eager FPU default Mihai Carabas Orabug: 28156176 CVE-2018-3665 - KVM: Fix stack-out-of-bounds read in writemmio Wanpeng Li Orabug: 27951287 CVE-2017-17741 CVE-2017-17741 - xfs: set forma...

Security Bulletin: Multiple vulnerabilities in qemu-kvm affect IBM SmartCloud Provisioning for IBM Software Virtual Appliance

Summary Multiple vulnerabilities in qemu-kvm affect IBM SmartCloud Provisioning V2.1 for IBM Software Virtual Appliance. Please note product software support discontinuance as per IBM Withdrawal Announcement 916-016. For withdrawal announcement information details see the Reference section below...

Security Bulletin: Vulnerability in spice affects IBM SmartCloud Provisioning for IBM Software Virtual Appliance (CVE-2015-5261, CVE-2015-5260)

Summary Vulnerability spice affects IBM SmartCloud Provisioning for IBM Software Virtual Appliance CVE-2015-5261, CVE-2015-5260. Vulnerability Details CVEID: CVE-2015-5261 DESCRIPTION: Red Hat spice is vulnerable to a heap-based buffer overflow. By sending specially crafted QXL command, a local...

Security Bulletin: IBM SmartCloud Orchestrator - Nova compute DoS through ephemeral disk backing files (CVE-2013-6437)

Summary By repeatedly creating snapshots, changing the ostype to a new random value, and spawning new instances from the snapshot and quickly deleting those instances, an authenticated user might generate lots of different ephemeral disk backing files. These files than fill up compute node disks,...

Security Bulletin: Potential Nova denial of service through compressed disk images (CVE-2013-4463, CVE-2013-4469)

Summary By using malicious compressed qcow2 disk images, an authenticated user might consume large amounts of disk space for each image. This scenario can potentially result in a Denial of Service attack on Nova compute nodes CVE-2013-4463. In the non-default case where usecowimages=False and...

Security Bulletin: Vulnerability in qemu-kvm affects IBM SmartCloud Provisioning for IBM Software Virtual Appliance

Summary Security Bulletin: Vulnerability in qemu-kvm affects IBM SmartCloud Provisioning for IBM Software Virtual Appliance CVE-2015-5165. Vulnerability Details CVEID: CVE-2015-5165 DESCRIPTION: Xen could allow a local attacker to obtain sensitive information, caused by the improper validation of...

OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0228) (Spectre)

The remote OracleVM system is missing necessary patches to address critical security updates : - netlink: add a start callback for starting a netlink dump Tom Herbert Orabug: 27169581 CVE-2017-16939 - ipsec: Fix aborted xfrm policy dump crash Herbert Xu Orabug: 27169581 CVE-2017-16939 - net/rds:...

Ubuntu: Security Advisory (USN-3676-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Amazon Linux AMI : qemu-kvm (ALAS-2018-1034) (Spectre)

An out-of-bounds read access issue was found in the VGA display emulator built into the Quick emulator QEMU. It could occur while reading VGA memory to update graphics display. A privileged user/process inside guest could use this flaw to crash the QEMU process on the host resulting in denial of...