ASA-2019-00658 – Linux kernel: Mounting a crafted btrfs filesystem image can lead to a use-after-free through syncfs system call

Mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.

ASA-2019-00657 – Linux kernel: Use-after-free vulnerability when deleting a file from a recently unmounted specially crafted ext4 filesystem

A flaw was found in the Linux kernel's ext4_unlink function. An attacker could corrupt memory or escalate privileges when deleting a file from a recently unmounted specially crafted ext4 filesystem, including local, USB, and iSCSI.

ASA-2019-00646 – Electron: Chromium WebAudio Use-After-Free Vulnerability

A vulnerability has been discovered in Chrome which affects all software based on Chromium, including Electron. Use-after-free in WebAudio in Google Chrome allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

ASA-2019-00630 – Linux kernel: Wrong locking causes race conditions on streaming stop in vivid driver

An issue was discovered in drivers/media/platform/vivid in the Linux kernel. It is exploitable for privilege escalation on some Linux distributions where local users have /dev/video0 access, but only if the driver happens to be loaded. There are multiple race conditions during streaming stopping in this driver (part of the V4L2 subsystem).

ASA-2019-00562 – VMware ESXi, Workstation, Fusion, Remote Console and Horizon Client: Use-after-free vulnerability in the virtual sound device

ESXi, Workstation, Fusion, VMRC and Horizon Client contain a use-after-free vulnerability in the virtual sound device. A local attacker with non-administrative access on the guest machine may exploit this issue to execute code on the host.