The vulnerability of the io_commit_cring() function in the io_uring/io_uring.c module of the io_uring subsystem in the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of protected information, or to enhance their privileges.

The vulnerability of the iocommitcrying function in the iouring/iouring.c module of the iouring subsystem of the Linux operating system is related to a violation of synchronization mechanisms. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and...

Important: kernel

Issue Overview: A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled?address, potentially leading to information disclosure. CVE-2023-20569 A use-after-free...

USN-6260-1: Linux kernel vulnerabilities

It was discovered that the NTFS file system implementation in the Linux kernel did not properly check buffer indexes in certain situations, leading to an out-of-bounds read vulnerability. A local attacker could possibly use this to expose sensitive information kernel memory. CVE-2022-48502...

Ubuntu 22.04 LTS : Linux kernel vulnerabilities (USN-6260-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6260-1 advisory. It was discovered that the NTFS file system implementation in the Linux kernel did not properly check buffer indexes in certain situations, leading to an...

Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-6249-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6249-1 advisory. Ruihan Li discovered that the memory management subsystem in the Linux kernel contained a race condition when accessing VMAs in certain conditions, leadi...

Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-6248-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6248-1 advisory. It was discovered that the network queuing discipline implementation in the Linux kernel contained a null pointer dereference in some situations. A local...

USN-6250-1: Linux kernel vulnerabilities

Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did not properly perform permission checks in certain situations. A local attacker could possibly use this to gain elevated privileges. CVE-2023-2640 It was discovered that the IP-VLAN...

USN-6249-1: Linux kernel (OEM) vulnerabilities

Ruihan Li discovered that the memory management subsystem in the Linux kernel contained a race condition when accessing VMAs in certain conditions, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service system crash or execute arbitrary...

USN-6249-1 linux-oem-6.1 vulnerabilities

Ruihan Li discovered that the memory management subsystem in the Linux kernel contained a race condition when accessing VMAs in certain conditions, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service system crash or execute arbitrary...

DEBIAN-CVE-2023-2430

A vulnerability was found due to missing lock for IOPOLL flaw in iocqringeventoverflow in iouring.c in Linux Kernel. This flaw allows a local attacker with user privilege to trigger a Denial of Service threat...

CVE-2023-2430

CVE-2023-2430 concerns the Linux kernel io_uring IOPOLL path. The root cause is a missing lock in io_cqring_event_overflow(), allowing a locally privileged user to trigger a Denial of Service via the io_uring subsystem. Public advisories (Debian, SUSE, Amazon Linux) indicate patches exist in upda...

CVE-2023-2430

A vulnerability was found due to missing lock for IOPOLL flaw in iocqringeventoverflow in iouring.c in Linux Kernel. This flaw allows a local attacker with user privilege to trigger a Denial of Service threat...

OESA-2023-1438 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: A time-of-check to time-of-use issue exists in iouring subsystem's IORINGOPCLOSE operation in the Linux kernel's versions 5.6 - 5.11 inclusive, which allows a local user to elevate their privileges to root. Introduced in...

OESA-2023-1436 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: A time-of-check to time-of-use issue exists in iouring subsystem's IORINGOPCLOSE operation in the Linux kernel's versions 5.6 - 5.11 inclusive, which allows a local user to elevate their privileges to root. Introduced in...

OESA-2023-1435 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: A time-of-check to time-of-use issue exists in iouring subsystem's IORINGOPCLOSE operation in the Linux kernel's versions 5.6 - 5.11 inclusive, which allows a local user to elevate their privileges to root. Introduced in...

CVE-2023-21400

A double-free vulnerability was found in the iouring subsystem in the Linux kernel. This issue may allow a malicious local user to crash the kernel or elevate their privileges on the system...

USN-6235-1: Linux kernel (OEM) vulnerabilities

It was discovered that the NTFS file system implementation in the Linux kernel contained a null pointer dereference in some situations. A local attacker could use this to cause a denial of service system crash. CVE-2022-4842 Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel di...

The vulnerability of the io_poll_update() function in the io_uring/io_uring.c module of the Linux operating system allows a hacker to increase their privileges.

The vulnerability of the iopollupdate function in the iouring/iouring.c module of the Linux operating system is related to the use of previously freed memory. Exploiting this vulnerability can allow an attacker to increase their privileges...

The vulnerability of the io_uring subsystem in Linux operating systems allows a hacker to elevate their privileges to the level of root.

The vulnerability of the iouring subsystem in Linux operating systems is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to elevate their privileges to the root level...

OESA-2023-1424 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Racing a iouring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend...