Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4708-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4708-1 advisory. Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to...

Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4578-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4578-1 advisory. Hadar Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free...

USN-4439-1: Linux kernel vulnerabilities

It was discovered that the network block device nbd implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service system crash. CVE-2019-16089 It was discovered that the btrfs file system...

USN-4287-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. CVE-2019-14615 It was discovered that the Atheros 802.11ac wireless USB device driver in the...

Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4258-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4258-1 advisory. It was discovered that the Atheros 802.11ac wireless USB device driver in the Linux kernel did not properly validate device metadata. A physically...

USN-4254-2 linux-lts-xenial, linux-aws vulnerabilities

USN-4254-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. It was discovered that the Linux kernel did not properly clear data structures on...

USN-4254-2: Linux kernel (Xenial HWE) vulnerabilities

USN-4254-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. It was discovered that the Linux kernel did not properly clear data structures on...

USN-4258-1: Linux kernel vulnerabilities

It was discovered that the Atheros 802.11ac wireless USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service system crash. CVE-2019-15099 It was discovered that a race condition existed in the...

USN-4258-1 linux-aws-5.0, linux-gcp, linux-gke-5.0, linux-oracle-5.0 vulnerabilities

It was discovered that the Atheros 802.11ac wireless USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service system crash. CVE-2019-15099 It was discovered that a race condition existed in the...

Ubuntu: Security Advisory (USN-4254-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2020 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...

The vulnerability in the implementation of the system call `syncfs` in Linux kernel allows a attacker to cause a service failure.

The vulnerability of the syncfs system call implementation in Linux operating systems relates to the use of memory after it is freed. Exploiting this vulnerability can allow an attacker to cause a service failure by executing functions such as mutexcanspinonowner, btrfsqgroupfreemeta, and...

USN-4254-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. CVE-2019-14615 It was discovered that a race condition existed in the Virtual Video Test Drive...

Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4254-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4254-1 advisory. It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacke...

Vulnerability of the __btrfs_free_extent function (fs/btrfs/extent-tree.c) in the Linux operating system, which allows an attacker to gain unauthorized access to protected information

The vulnerability of the btrfsfreeextent function fs/btrfs/extent-tree.c in the Linux operating system is related to the lack of protection for metadata. Exploiting this vulnerability could allow an attacker to gain unauthorized access to protected information...

CVE-2019-19377

A flaw was found in the Linux kernel's implementation of the BTRFS file system. A local attacker, with the ability to mount a file system, can create a use-after-free memory fault after the file system has been unmounted. This may lead to memory corruption or privilege escalation. Mitigation As t...

UBUNTU-CVE-2019-19448

In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in trymergefreespace in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the...

USN-4094-1: Linux kernel vulnerabilities | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 16.04 Description It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. CVE-2018-13053 Wen Xu...

Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel (AWS) vulnerabilities (USN-4118-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4118-1 advisory. It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could...

Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4094-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4094-1 advisory. It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could...

USN-4094-1: Linux kernel vulnerabilities

It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. CVE-2018-13053 Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track...