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...

OESA-2023-1423 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...

OESA-2023-1425 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...

CVE-2023-21400

In multiple functions of iouring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation...

CVE-2023-3389

A use-after-free flaw was found in the Linux kernel’s iouring functionality. This flaw allows a local user to crash the system...

Use after free in io_uring in the Linux Kernel

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EulerOS 2.0 SP11 : kernel (EulerOS-SA-2023-2272)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode swit...

PUB-A-264663832

In multiple functions of iouring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation...

SUSE CVE-2023-1295

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 b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in...