Linux kernel 竞争条件问题漏洞

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A competitive condition vulnerability exists in getoldroot in fs/btrfs/ctree.c in Linux kernel 5.11.8 and earlier. Th...

Debian DLA-2586-1 : linux security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2019-19318, CVE-2019-19813, CVE-2019-19816 'Team bobfuzzer' reported bugs in Btrfs that could lead to a use-after-free or heap buffer overflow, and...

[SECURITY] [DLA 2586-1] linux security update

Debian LTS Advisory DLA-2586-1 [email protected] https://www.debian.org/lts/security/ Ben Hutchings March 08, 2021 https://wiki.debian.org/LTS Package : linux Version : 4.9.258-1 CVE ID : CVE-2019-19318 CVE-2019-19813 CVE-2019-19816 CVE-2020-27815 CVE-2020-27825 CVE-2020-28374...

SUSE-SU-2021:0737-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP1 kernel was updated receive various security and bugfixes. The following security bugs were fixed: - CVE-2021-26930: Fixed an improper error handling in blkback's grant mapping XSA-365 bsc1181843. - CVE-2021-26931: Fixed an issue where Linux kernel was treating gra...

libblockdev bug fix and enhancement update

The libblockdev packages provide a C library with GObject introspection support used for low-level operations on block devices. The library serves as a thin wrapper around plug-ins for specific functionality, such as LVM, Btrfs, LUKS, or MD RAID. Bug Fixes and Enhancements: libblockdev doesn't ru...

ALBA-2021:0539 libblockdev bug fix and enhancement update

The libblockdev packages provide a C library with GObject introspection support used for low-level operations on block devices. The library serves as a thin wrapper around plug-ins for specific functionality, such as LVM, Btrfs, LUKS, or MD RAID. Bug Fixes and Enhancements: libblockdev doesn't ru...

USN-4709-1 linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

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...

USN-4709-1: Linux kernel vulnerabilities

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-4709-1)

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-4708-1 linux, linux-lts-xenial vulnerabilities

Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service system crash. CVE-2018-13093 It was discovered that the btrfs fi...

USN-4708-1: Linux kernel vulnerabilities

Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service system crash. CVE-2018-13093 It was discovered that the btrfs fi...

Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4709-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4709-1 advisory. It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An...

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...

Amazon Linux 2 : kernel (ALAS-2021-1588)

The version of kernel installed on the remote host is prior to 4.14.214-160.339. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1588 advisory. In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making...

Important: kernel

Issue Overview: In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in mutexlock in kernel/locking/mutex.c. This is related to mutexcanspinonowner in kernel/locking/mutex.c,...

How to make a software BTRFS RAID1 with LUKS2 FDE

The guide below is simplified in a way that preparing the boot partition is not covered. Software based btrfs RAID1 requires two devices, which conceptually dont even need to be on different disks. But for obvious reasons, its a good idea if they are… Having mirroring against encrypted storage...

Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5995)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5995 advisory. - vt: Disable KDFONTOPCOPY Daniel Vetter Orabug: 32187748 CVE-2020-28974 - xen/events: block rogue events for some time Juergen Gross Orabug: 32177538...

Debian DLA-2483-1 : linux-4.19 security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to the execution of arbitrary code, privilege escalation, denial of service or information leaks. CVE-2019-19039 'Team bobfuzzer' reported a bug in Btrfs that could lead to an assertion failure WARN. A user permitted t...

[SECURITY] [DLA 2483-1] linux-4.19 security update

Debian LTS Advisory DLA-2483-1 [email protected] https://www.debian.org/lts/security/ Ben Hutchings December 05, 2020 https://wiki.debian.org/LTS Package : linux-4.19 Version : 4.19.160-2deb9u1 CVE ID : CVE-2019-19039 CVE-2019-19377 CVE-2019-19770 CVE-2019-19816 CVE-2020-0423...

SUSE SLED15 / SLES15 Security Update : shim (SUSE-SU-2020:2629-1)

This update for shim fixes the following issues : This update addresses the 'BootHole' security issue master CVE CVE-2020-10713, by disallowing binaries signed by the previous SUSE UEFI signing key from booting. This update should only be installed after updates of grub2, the Linux kernel and if...