Vulnerabilidades

It was discovered that when exec'ing from a non-leader thread, armed POSIX CPU timers would be left on a list but freed, leading to a use-after-free.

Temporary data passed between application components by Budgie Extras Windows Previews could potentially be viewed or manipulated. The data is stored in a location that is accessible to any user who has local access to the system. Attackers may read private information from windows, present false information to users,…

Temporary data passed between application components by Budgie Extras WeatherShow applet could potentially be viewed or manipulated. The data is stored in a location that is accessible to any user who has local access to the system. Attackers may pre-create and control this file to present false information to users…

Temporary data passed between application components by Budgie Extras Takeabreak applet could potentially be viewed or manipulated. The data is stored in a location that is accessible to any user who has local access to the system. Attackers may pre-create and control this file to present false information to users or…

Temporary data passed between application components by Budgie Extras Window Shuffler applet could potentially be viewed or manipulated. The data is stored in a location that is accessible to any user who has local access to the system. Attackers may pre-create and control this file to present false information to…

Temporary data passed between application components by Budgie Extras Dropby applet could potentially be viewed or manipulated. The data is stored in a location that is accessible to any user who has local access to the system. Attackers may pre-create and control this file to present false information to users or…

Temporary data passed between application components by Budgie Extras Clockworks applet could potentially be viewed or manipulated. The data is stored in a location that is accessible to any user who has local access to the system. Attackers may pre-create and control this file to present false information to users or…

A feature in LXD (LP#1829071), affects the default configuration of Ubuntu Server which allows privileged users in the lxd group to escalate their privilege to root without requiring a sudo password.

Bluetooth HID Hosts in BlueZ may permit an unauthenticated Peripheral role HID Device to initiate and establish an encrypted connection, and accept HID keyboard reports, potentially permitting injection of HID messages when no user interaction has occurred in the Central role to authorize such access. An example…

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated…

PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers software-transparent compression that enables cross-origin pixel-stealing attacks against feTurbulence and feBlend in the SVG Filter specification, aka a GPU.zip issue. For example, attackers can sometimes accurately determine text…

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We…

In Ubuntu's accountsservice an unprivileged local attacker can trigger a use-after-free vulnerability in accountsservice by sending a D-Bus message to the accounts-daemon process.

Using the TIOCLINUX ioctl request, a malicious snap could inject contents into the input of the controlling terminal which could allow it to cause arbitrary commands to be executed outside of the snap sandbox after the snap exits. Graphical terminal emulators like xterm, gnome-terminal and others are not affected -…

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.

Local privilege escalation vulnerability in Ubuntu Kernels overlayfs ovl_copy_up_meta_inode_data skip permission checks when calling ovl_do_setxattr on Ubuntu kernels

On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks.

A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.

Linux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability; `nft_chain_lookup_byid()` failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network namespace

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59…

An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets. This may result in denial of service or privilege escalation.

A vulnerability classified as critical was found in KylinSoft youker-assistant on KylinOS. Affected by this vulnerability is the function delete_file in the library dbus.SystemBus of the component Arbitrary File Handler. The manipulation leads to improper access controls. It is possible to launch the attack on the…

A vulnerability classified as critical has been found in KylinSoft youker-assistant on KylinOS. Affected is the function restore_all_sound_file. The manipulation leads to path traversal: '../filedir'. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. Upgrading to version…

Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).

Sensitive data could be exposed in logs of cloud-init before version 23.1.2. An attacker could use this information to find hashed passwords and possibly escalate their privilege.