ID de Prueba:	1.3.6.1.4.1.25623.1.0.843904
Categoría:	Ubuntu Local Security Checks
Título:	Ubuntu Update for linux-azure USN-3871-5
Resumen:	The remote host is missing an update for; the 'linux-azure' package(s) announced via the USN-3871-5 advisory.
Descripción:	Summary: The remote host is missing an update for the 'linux-azure' package(s) announced via the USN-3871-5 advisory. Vulnerability Insight: 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-2018-10876, CVE-2018-10879) Wen Xu discovered that a buffer overflow 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-2018-10877) Wen Xu discovered that an out-of-bounds write 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-2018-10878, CVE-2018-10882) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly ensure that xattr information remained in inode bodies. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10880) 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 for an inline file. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10883) 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 Cohen discovered that a use-after-free vulnerability existed in the KVM implementation of the Linux kernel, when handling interrupts in environments where nested virtualization is in use (nested KVM virtualization is not enabled by default in Ubuntu kernels). A local attacker in a guest VM could possibly use this to gain administrative privileges in a host machine. (CVE-2018-16882) Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. (CVE-2018-17972) Jann Horn discovered that the mremap() system call in the Linux kernel did not properl ... Description truncated, please see the referenced URL(s) for more information. Affected Software/OS: linux-azure on Ubuntu 18.04 LTS, Ubuntu 16.04 LTS, Ubuntu 14.04 LTS. Solution: Please install the updated package(s). CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2018-9516 Debian Security Information: DSA-4308 (Google Search) https://www.debian.org/security/2018/dsa-4308 https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html RedHat Security Advisories: RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2029 RedHat Security Advisories: RHSA-2019:2043 https://access.redhat.com/errata/RHSA-2019:2043 https://usn.ubuntu.com/3871-1/ https://usn.ubuntu.com/3871-3/ https://usn.ubuntu.com/3871-4/ https://usn.ubuntu.com/3871-5/
Copyright	Copyright (C) 2019 Greenbone Networks GmbH

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