CVE-2019-15794 Reference counting error in overlayfs/shiftfs error path when used in conjuction with aufs

Overlayfs in the Linux kernel and shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, both replace vma-vmfile in their mmap handlers. On error the original value is not restored, and the reference is put for the file to which vmfile points. On...

CVE-2019-15794

Overlayfs in the Linux kernel and shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, both replace vma-vmfile in their mmap handlers. On error the original value is not restored, and the reference is put for the file to which vmfile points. On...

CVE-2019-15794

CVE-2019-15794 describes a refcount underflow in the overlayfs/shiftfs error path when used with aufs patches. Specifically, both the Overlayfs and shiftfs patches in the Ubuntu 5.0 and 5.3 kernel series replace vma->vm_file in mmap handlers, and on error do not restore the original value; the...

CVE-2019-15791

CVE-2019-15791 describes a refcount underflow in the Linux kernel shiftfs implementation caused by a non-upstream patch in Ubuntu 5.0/5.3 kernels: shiftfs_btrfs_ioctl_fd_replace() can create a file descriptor to a lower-filesystem file without an extra reference, and closing the FD after the btrf...

CVE-2019-15791

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfsbtrfsioctlfdreplace installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, whi...

CVE-2019-15791 Reference count underflow in shiftfs

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfsbtrfsioctlfdreplace installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, whi...

Exploit for CVE-2016-0728

This repository is an offensive tool for Linux kernel exploitation, specifically targeting the CVE-2016-0728 vulnerability. The vulnerability is a REFCOUNT overflow/Use-After-Free in keyrings, which allows for local root exploitation. The repository contains two exploit modules, expboost.c and...

GHSA-QFC5-MCWQ-26Q8 Double Free in psutil

psutil aka python-psutil through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object...

Double Free in psutil

psutil aka python-psutil through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object...

PT-2020-6651 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the use of memory after it has been freed in the vgem gem dumb create function of the Linux kernel. This can be exploited to allow an attacker to execute...

CVE-2019-10585

Possible integer overflow happens when mmap find function will increment refcount every time when it invokes and can lead to use after free issue in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables in APQ8009, APQ8053...

CVE-2019-10585

Possible integer overflow happens when mmap find function will increment refcount every time when it invokes and can lead to use after free issue in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables in APQ8009, APQ8053...

CVE-2019-19530

A use-after-free flaw was found in the acmprobe USB subsystem in the Linux kernel. A race condition occurs when a destroy procedure is initiated allowing the refcount to decrement on the interface so early that it is never under counted. A malicious USB device is required for exploit. System...

Ubuntu shiftfs refcount Underflow / Type Confusion

Ubuntu: refcount underflow and type confusion in shiftfs Tested on Ubuntu 19.10, kernel "5.3.0-19-generic 20-Ubuntu". Ubuntu ships a filesystem "shiftfs" in fs/shiftfs.c in the kernel tree that doesn't exist upstream. This filesystem can be mounted from user namespaces, meaning that this is...

Arbitrary Code Execution

python-psutil is vulnerable to arbitrary code execution. Mishandling of refcount within a while or for loop that converts system data into a Python object results in a double-free bug and allows for execution of arbitrary code...

CVE-2019-15791

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfsbtrfsioctlfdreplace installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, whi...

UBUNTU-CVE-2019-15791

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfsbtrfsioctlfdreplace installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, whi...

CVE-2019-18874

psutil aka python-psutil through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object...

CVE-2019-18874

psutil aka python-psutil through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object...

ALPINE-CVE-2019-18874

psutil aka python-psutil through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object...