USN-6070-1: Linux kernel vulnerabilities

It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the...

CVE-2023-2236

A use-after-free vulnerability was found in ioinstallfixedfile in iouring/filetable.c in the Linux Kernel’s iouring subsystem. This flaw allows an attacker to achieve local privilege escalation. Mitigation Mitigation for this issue is either not available or the currently available options don't...

SUSE CVE-2023-2598

A flaw was found in the fixed buffer registration code for iouring iosqebufferregister in iouring/rsrc.c in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation...

The vulnerability of the io_install_fixed_file() function in the io_uring subsystem of Linux kernels allows a malicious actor to escalate their privileges or cause service failures.

The vulnerability of the ioinstallfixedfile function in the iouring subsystem of Linux kernels relates to the use of memory after it is freed. Exploiting this vulnerability can allow an attacker to increase their privileges or cause service interruptions...

UBUNTU-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...

SUSE 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...

PT-2023-2762 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A flaw was found in the fixed buffer registration code for io uring io sqe buffer register in io uring/rsrc.c in the Linux kernel that allows out-of-bounds access to physical memory...

CVE-2023-2236

A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Both ioinstallfixedfile and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend...

DEBIAN-CVE-2023-2236

A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Both ioinstallfixedfile and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend...

Design/Logic Flaw

A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Both ioinstallfixedfile and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend...

UBUNTU-CVE-2023-2236

A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Both ioinstallfixedfile and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend...

CVE-2023-2236

A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Both ioinstallfixedfile and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend...

CVE-2023-2236 Use-after-free in Linux kernel's Performance Events subsystem

A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Both ioinstallfixedfile and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend...

CVE-2023-2236

A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Both ioinstallfixedfile and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend...

CVE-2023-2236

The CVE-2023-2236 entry describes a use-after-free in the Linux Kernel io_uring subsystem. The root cause is a reference underflow caused by fput being called in error paths within io_install_fixed_file and its callers, leading to a local privilege escalation. Affected software is the Linux kerne...

CVE-2023-2236 Use-after-free in Linux kernel's Performance Events subsystem

A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Both ioinstallfixedfile and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend...

USN-6051-1: Linux kernel vulnerabilities

It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the...

Linux kernel 资源管理错误漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a post-release reuse vulnerability in the iouring subsystem to enable local lifting...

USN-6044-1 linux, linux-aws, linux-aws-5.15, linux-azure, linux-gke, linux-gke-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15 vulnerabilities

It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the...

USN-6044-1: Linux kernel vulnerabilities

It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the...