UBUNTU-CVE-2021-28951

An issue was discovered in fs/iouring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service deadlock because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25...

Linux kernel 安全漏洞

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 denial of service vulnerability exists in fs/iouring.c in Linux kernel 5.11.8 and earlier. The vulnerability stems...

Privilege Escalation

linux kernel is vulnerable to arbitrary code execution. A use-after-free in the iouring where a local attacker with a user privilege is able to cause a denial of service condition on the system and potentially obtain higher privileges due to the lack of validation of the existence of an object...

CVE-2021-20226

A use-after-free flaw was found in the iouring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not...

CVE-2021-20226

A use-after-free flaw was found in the iouring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not...

UBUNTU-CVE-2021-20226

A use-after-free flaw was found in the iouring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not...

Design/Logic Flaw

A use-after-free flaw was found in the iouring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not...

CVE-2021-20226

A use-after-free flaw was found in the iouring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not...

CVE-2021-20226

A use-after-free flaw was found in the iouring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not...

PT-2021-7676 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.10.161 Description: A vulnerability in the io uring subsystem can leak kernel memory information to the user process. The timens install function calls current is single threaded to determine if the current...

CVE-2021-20226

A use-after-free flaw was found in the iouring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system. The issue results from the lack of validating the existence of an object prior to performing operations on the object by not...

openSUSE Security Update : the Linux Kernel (openSUSE-2021-60)

The openSUSE Leap 15.2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2020-27835: A use after free in the Linux kernel infiniband hfi1 driver was found in the way user calls Ioctl after open dev file and fork. A local user could use thi...

The vulnerability of the io_uring function in the Linux operating system’s kernel allows attackers to increase their privileges.

The vulnerability of the iouring function in the Linux operating system’s kernel is related to privilege assignment errors. Exploiting this vulnerability can allow an attacker to increase their privileges...

Ubuntu: Security Advisory (USN-4678-1)

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...

Arbitrary Code Execution

linux is vulnerable to arbitrary code execution. The iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to optimize unsharefd in an insecure manner and potentially allows for arbitrary code execution...

USN-4678-1 linux, linux-hwe-5.8, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi vulnerabilities

It was discovered that the AMD Running Average Power Limit RAPL driver in the Linux kernel did not properly restrict access to power data. A local attacker could possibly use this to expose sensitive information. CVE-2020-12912 Jann Horn discovered that the iouring subsystem in the Linux kernel d...

USN-4678-1: Linux kernel vulnerabilities

It was discovered that the AMD Running Average Power Limit RAPL driver in the Linux kernel did not properly restrict access to power data. A local attacker could possibly use this to expose sensitive information. CVE-2020-12912 Jann Horn discovered that the iouring subsystem in the Linux kernel d...

Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-4678-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4678-1 advisory. It was discovered that the AMD Running Average Power Limit RAPL driver in the Linux kernel did not properly restrict access to power data. A local attack...

Linux Kernel io_uring Use-After-Free Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of file...

PT-2021-7639 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.10.161 Description: The issue is related to a logic error in the io uring implementation, which can trigger a use-after-free vulnerability leading to privilege escalation. In the io prep async work function, t...