CVE-2023-1295 Privilege escalation with IO_RING_OP_CLOSE in the Linux Kernel

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...

CVE-2023-1295

CVE-2023-1295 describes a time-of-check to time-of-use issue in the Linux kernel io_uring IORING_OP_CLOSE path, affecting kernels 5.6–5.11 (inclusive). The flaw, a local privilege escalation, is introduced by the commit b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb and patched in 9eac1904d3364254d622b...

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...

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. The vulnerability stems from a use-after-release in the iouring subsystem in the Linux kernel, which can be exploited by an...

CVE-2023-1295: Time-of-check Time-of-use (TOCTOU) Race Condition

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...

CVE-2023-3389: Use After Free

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 upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59...

USN-6186-1: Linux kernel vulnerabilities

Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrar...

LSN-0095-1: Kernel Live Patch Security Notice

It was discovered that the OverlayFS implementation in the Linux kernel did not properly handle copy up operation in some conditions. A local attacker could possibly use this to gain elevated privileges.CVE-2023-0386 It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel...

LSN-0095-1 Kernel Live Patch Security Notice

It was discovered that the OverlayFS implementation in the Linux kernel did not properly handle copy up operation in some conditions. A local attacker could possibly use this to gain elevated privileges.CVE-2023-0386 It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel...

PT-2025-40168

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel related to io uring request completions during ring exit. Specifically, the io ring exit work function, invoked by a kernel worker, could potentially...

PT-2023-36793

Уязвимость функции io ring exit work модуля io uring/io uring.c интерфейса асинхронного ввода/вывода ядра операционной системы Linux связана с ошибками инициализации. Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании...

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 beyond the end of the buffer. This flaw enables full local privilege escalation.

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SUSE SLES15 Security Update : kernel (Live Patch 23 for SLE 15 SP3) (SUSE-SU-2023:2423)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2423 advisory. This update for the Linux Kernel 5.3.18-1503005990 fixes several issues. The following security issues were fixed: - CVE-2023-28464: Fixed...

SUSE SLES15: kernel-livepatch-5_3_18-150200_24_126-default / etc (SUSE-SU-2023:2405)

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2405 advisory. This update for the Linux Kernel 5.3.18-15020024126 fixes several issues. The following security issues were fixed: - CVE-2023-28464: Fixed...

Linux kernel elevation of privilege vulnerability (CNVD-2023-51385)

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel has an elevation of privilege vulnerability that originates from an out-of-bounds access to physical memory beyond the end of the buffer in the file iouring, which...

virt:kvm_utils2 security update

hivex libguestfs libguestfs-winsupport libiscsi libnbd libtpms libvirt libvirt-dbus libvirt-python nbdkit netcf perl-Sys-Virt qemu-kvm 6.1.1-6-el8 - CVE-2023-1544 is not applicable to Oracle QEMU 6.1.1 Karl Heubaum Orabug: 35305727 CVE-2023-1544 - virtio-gpu: do not byteswap padding Paolo Bonzini...

USN-6133-1: Linux kernel (Intel IoTG) 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-2023-2598

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...

AZL-27061 CVE-2023-2598 affecting package kernel for versions less than 5.15.116.1-1

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...

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...