UBUNTU-CVE-2019-6974

In the Linux kernel before 4.20.8, kvmioctlcreatedevice in virt/kvm/kvmmain.c mishandles reference counting because of a race condition, leading to a use-after-free...

Linux - 'kvm_ioctl_create_device()' NULL Pointer Dereference

kvmioctlcreatedevice contains the following code: dev = kzallocsizeofdev, GFPKERNEL; if !dev return -ENOMEM; dev-ops = ops; dev-kvm = kvm; mutexlock&kvm-lock; ret = ops-createdev, cd-type; if ret lock; kfreedev; return ret; listadd&dev-vmnode, &kvm-devices; mutexunlock&kvm-lock; if ops-init...

Unbreakable Enterprise kernel security update

4.14.35-1844.2.5 - x86/apic: Switch all APICs to Fixed delivery mode Thomas Gleixner Orabug: 29262403 4.14.35-1844.2.4 - x86/platform/UV: Add check of TSC state set by UV BIOS [email protected] Orabug: 29205471 - x86/tsc: Provide a means to disable TSC ART [email protected] Orabug: 29205471 -...

CentOS 6 : spice-server (CESA-2019:0232)

An update for spice-server is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

USN-3878-3: Linux kernel regression

USN-3878-1 fixed vulnerabilities in the Linux kernel. Unfortunately, that update introduced a regression that could prevent systems with certain graphics chipsets from booting. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that a...

spice security update

CentOS Errata and Security Advisory CESA-2019:0232 An update for spice-server is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed...

Ubuntu: Security Advisory (USN-3871-5)

The remote host is missing an update for the SPDX-FileCopyrightText: 2019 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...

Ubuntu: Security Advisory (USN-3878-2)

The remote host is missing an update for the SPDX-FileCopyrightText: 2019 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...

Ubuntu 18.10 : linux-azure vulnerabilities (USN-3878-2)

It was discovered that a race condition existed in the vsock address family implementation of the Linux kernel that could lead to a use-after-free condition. A local attacker in a guest virtual machine could use this to expose sensitive information host machine kernel memory. CVE-2018-14625 Cfir...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Linux kernel (Azure) vulnerabilities (USN-3871-5)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3871-5 advisory. Wen Xu discovered that a use-after-free vulnerability existed in the ext4 filesystem implementation in the Linux kernel. An...

USN-3878-2: Linux kernel (Azure) vulnerabilities

It was discovered that a race condition existed in the vsock address family implementation of the Linux kernel that could lead to a use-after-free condition. A local attacker in a guest virtual machine could use this to expose sensitive information host machine kernel memory. CVE-2018-14625 Cfir...

USN-3871-5: Linux kernel (Azure) vulnerabilities

Wen Xu discovered that a use-after-free vulnerability existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service system crash or possibly execute arbitrary code...

CVE-2019-7221

A use-after-free vulnerability was found in the way the Linux kernel's KVM hypervisor emulates a preemption timer for L2 guests when nested =1 virtualization is enabled. This high resolution timerhrtimer runs when a L2 guest is active. After VM exit, the syncvmcs12 timer object is stopped. The...

Ubuntu 16.04 LTS : Linux kernel (HWE) vulnerabilities (USN-3871-4)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3871-4 advisory. USN-3871-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enableme...

Ubuntu 18.10 : linux, linux-aws, linux-gcp, linux-kvm, linux-raspi2 vulnerabilities (USN-3878-1)

It was discovered that a race condition existed in the vsock address family implementation of the Linux kernel that could lead to a use-after-free condition. A local attacker in a guest virtual machine could use this to expose sensitive information host machine kernel memory. CVE-2018-14625 Cfir...

Ubuntu 18.04 LTS : Linux kernel regression (USN-3871-2)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-3871-2 advisory. USN-3871-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. Unfortunately, that update introduced regressions with docking station displays and...

Ubuntu: Security Advisory (USN-3871-3)

The remote host is missing an update for the SPDX-FileCopyrightText: 2019 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...

Ubuntu: Security Advisory (USN-3878-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2019 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...

Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3879-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3879-1 advisory. Wen Xu discovered that the ext4 file system implementation in the Linux kernel could possibly perform an out of bounds write when updating the journal fo...

Ubuntu 18.04 LTS : Linux kernel (AWS, GCP, KVM, OEM, Raspberry Pi 2) vulnerabilities (USN-3871-3)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3871-3 advisory. Wen Xu discovered that a use-after-free vulnerability existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to...