Ubuntu 16.04 ESM / 18.04 LTS : Linux kernel vulnerabilities (USN-5136-1)

The remote Ubuntu 16.04 ESM / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5136-1 advisory. It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use...

EulerOS 2.0 SP8 : kernel (EulerOS-SA-2021-2636)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - DISPUTED In drivers/char/virtioconsole.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that...

Ubuntu: Security Advisory (USN-5120-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

USN-5120-1: Linux kernel (Azure) vulnerabilities

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service system crash or possibly execute arbitrary code...

USN-5092-3: Linux kernel (Azure) regression

USN-5092-2 fixed vulnerabilities in Linux 5.11-based kernels. Unfortunately, for Linux kernels intended for use within Microsoft Azure environments, that update introduced a regression that could cause the kernel to fail to boot in large Azure instance types. This update fixes the problem. We...

USN-5091-2: Linux kernel (Raspberry Pi) vulnerabilities

Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk discovered that the BPF verifier in the Linux kernel missed possible mispredicted branches due to type confusion, allowing a side-channel attack. An attacker could use this to expose sensitive information. CVE-2021-33624 It was...

USN-5096-1: Linux kernel (OEM) vulnerabilities

Valentina Palmiotti discovered that the iouring subsystem in the Linux kernel could be coerced to free adjacent memory. A local attacker could use this to execute arbitrary code. CVE-2021-41073 Benedict Schlueter discovered that the BPF subsystem in the Linux kernel did not properly protect again...

USN-5092-2: Linux kernel vulnerabilities

Valentina Palmiotti discovered that the iouring subsystem in the Linux kernel could be coerced to free adjacent memory. A local attacker could use this to execute arbitrary code. CVE-2021-41073 Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk discovered that the BPF verifier in...

USN-5092-1: Linux kernel vulnerabilities

Valentina Palmiotti discovered that the iouring subsystem in the Linux kernel could be coerced to free adjacent memory. A local attacker could use this to execute arbitrary code. CVE-2021-41073 Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk discovered that the BPF verifier in...

USN-5091-1: Linux kernel vulnerabilities

Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk discovered that the BPF verifier in the Linux kernel missed possible mispredicted branches due to type confusion, allowing a side-channel attack. An attacker could use this to expose sensitive information. CVE-2021-33624 It was...

CVE-2021-38199

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

CVE-2021-38199

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

CVE-2021-38199

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

Code injection

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

CVE-2021-38199

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

CVE-2021-38199

CVE-2021-38199 concerns the Linux kernel’s NFSv4 client. The vulnerability arises from incorrect connection-setup ordering in fs/nfs/nfs4client.c, which can be triggered by remote NFSv4 servers during trunking detection, potentially causing a denial of service by hanging mounts. Connected advisor...

CVE-2021-38199

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

GSD-2021-1001385 NFSv4: Initialise connection to the server in nfs4_alloc_client()

NFSv4: Initialise connection to the server in nfs4allocclient This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.198 by commit...

UVI-2021-1001385 NFSv4: Initialise connection to the server in nfs4_alloc_client()

NFSv4: Initialise connection to the server in nfs4allocclient This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.198 by commit...

GSD-2021-1001327 NFSv4: Initialise connection to the server in nfs4_alloc_client()

NFSv4: Initialise connection to the server in nfs4allocclient This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.134 by commit...