Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4912-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4912-1 advisory. Piotr Krysiuk discovered that the BPF JIT compiler for x86 in the Linux kernel did not properly validate computation of branch displacements in some...

Ubuntu: Security Advisory (USN-4911-1)

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-4911-1: Linux kernel (OEM) vulnerabilities

It was discovered that the Nouveau GPU driver in the Linux kernel did not properly handle error conditions in some situations. A local attacker could use this to cause a denial of service system crash. CVE-2020-25639 Jan Beulich discovered that the Xen netback backend in the Linux kernel did not...

USN-4887-1: Linux kernel vulnerabilities

De4dCr0w of 360 Alpha Lab discovered that the BPF verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker could use this to expose sensitive information kernel memory or possibly execute arbitrary code...

Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4884-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4884-1 advisory. Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate attributes in the getsockopt BPF hook. A local attacker...

Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerability (USN-4753-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4753-1 advisory. It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker wi...

Ubuntu: Security Advisory (USN-4884-1)

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-4884-1: Linux kernel (OEM) vulnerabilities

Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate attributes in the getsockopt BPF hook. A local attacker could possibly use this to cause a denial of service system crash. CVE-2021-20194 It was discovered that the priority inheritance futex...

USN-4753-1: Linux kernel (OEM) vulnerability

It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data...

Ubuntu: Security Advisory (USN-4727-1)

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-4683-1: Linux kernel (OEM) vulnerability

Minh Yuan discovered that the framebuffer console driver in the Linux kernel did not properly handle fonts in some conditions. A local attacker could use this to cause a denial of service system crash or possibly expose sensitive information kernel memory...

Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerability (USN-4683-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4683-1 advisory. Minh Yuan discovered that the framebuffer console driver in the Linux kernel did not properly handle fonts in some conditions. A local attacker could use this to...

System Management Mode deep dive: How SMM isolation hardens the platform

Ensuring that the platform firmware is healthy and trustworthy is fundamental to guaranteeing that powerful platform security features like Hypervisor-protected code integrity HVCI and Windows Defender Credential Guard are functioning as expected. Windows 10 achieves this by leveraging a...

System Management Mode deep dive: How SMM isolation hardens the platform

Ensuring that the platform firmware is healthy and trustworthy is fundamental to guaranteeing that powerful platform security features like Hypervisor-protected code integrity HVCI and Windows Defender Credential Guard are functioning as expected. Windows 10 achieves this by leveraging a...

Denial Of Service (DoS)

linux-oem-osp1 is vulnerable to denial of service DoS. The vulnerability exists through a heap based buffer overflow in the bluetooth implementation...

USN-4592-1: Linux kernel vulnerabilities

Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux kernel contained a type-confusion error. A physically proximate remote attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2020-12351 Andy Nguyen discovered that the...

USN-4577-1: Linux kernel vulnerabilities

Hadar Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2020-16119 Giuseppe Scriva...

Ubuntu: Security Advisory (USN-4577-1)

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...

Ubuntu: Security Advisory (USN-4462-1)

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...

USN-4462-1: Linux kernel vulnerability

It was discovered that the bcache subsystem in the Linux kernel did not properly release a lock in some error conditions. A local attacker could possibly use this to cause a denial of service...