CVE-2023-1872 Use-after-free in Linux kernel's io_uring subsystem

A use-after-free vulnerability in the Linux Kernel iouring system can be exploited to achieve local privilege escalation. The iofilegetfixed function lacks the presence of ctx-uringlock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We...

CVE-2023-1872

CVE-2023-1872 is a use-after-free in the Linux kernel io_uring subsystem caused by the io_file_get_fixed path not validating ctx->uring_lock, enabling a race with fixed files unregistration. This can lead to local privilege escalation and possible denial of service. Affected component is the k...

CVE-2023-1872

A use-after-free vulnerability in the Linux Kernel iouring system can be exploited to achieve local privilege escalation. The iofilegetfixed function lacks the presence of ctx-uringlock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We...

CVE-2023-1872: Use After Free

A use-after-free vulnerability in the Linux Kernel iouring system can be exploited to achieve local privilege escalation. The iofilegetfixed function lacks the presence of ctx-uringlock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We...

ASB-A-264692298

In static initializers of iouring.c, there is an insecure default value. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation...

USN-5979-1: Linux kernel (HWE) vulnerabilities

It was discovered that the KVM VMX implementation in the Linux kernel did not properly handle indirect branch prediction isolation between L1 and L2 VMs. An attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. CVE-2022-2196 It was discovered...

CBL Mariner 2.0 Security Update: kernel (CVE-2022-29582)

The version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-29582 advisory. - In the Linux kernel before 5.17.3, fs/iouring.c has a use-after-free due to a race condition in iouring...

Ubuntu 22.04 LTS : Linux kernel (HWE) vulnerabilities (USN-5979-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5979-1 advisory. It was discovered that the KVM VMX implementation in the Linux kernel did not properly handle indirect branch prediction isolation between L1 and L2 VMs...

USN-5977-1 linux-oem-6.0 vulnerabilities

It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2023-1281 It was discovered that the KVM VMX...

CVE-2023-1583

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...

CVE-2023-1583

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...

DEBIAN-CVE-2023-1583

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...

Null pointer dereference

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...

CVE-2023-1583

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...

UBUNTU-CVE-2023-1583

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...

CVE-2023-1583

A NULL pointer dereference flaw was found in the iouring sub-component in iofilebitmapget of iouring/filetable.c.the in the Linux kernel. This issue could allow a local user to crash the system...

SUSE CVE-2023-1583

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...

CVE-2023-1583

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...

CVE-2023-1583

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...

CVE-2023-1583: NULL Pointer Dereference

A NULL pointer dereference was found in iofilebitmapget in iouring/filetable.c in the iouring sub-component in the Linux Kernel. When fixed files are unregistered, some context information fileallocstart,end and allochint is not cleared. A subsequent request that has auto index selection enabled...