Canonical Ubuntu Linux 23.04

In Ubuntu, gnome-control-center did not properly reflect SSH remote login status when the system was configured to use systemd socket activation for openssh-server. This could unknowingly leave the local machine exposed to remote SSH access contrary to expectation of the user.

Published: 2025-04-15T18:29:54.565Z
Updated: 2025-04-15T20:51:31.399Z

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 privileges.

Published: 2023-10-03T17:25:08.434Z
Updated: 2026-05-12T10:18:01.935Z

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.

Published: 2023-09-01T20:49:43.576Z
Updated: 2024-09-30T20:19:08.943Z

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.

Published: 2023-09-01T20:49:43.576Z
Updated: 2024-09-30T20:19:08.943Z

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

Published: 2023-07-26T01:59:47.061Z
Updated: 2025-02-13T16:54:52.620Z

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.

Published: 2023-07-26T01:59:23.543Z
Updated: 2024-10-23T14:59:17.779Z

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.

Published: 2023-04-26T22:23:47.305Z
Updated: 2025-02-13T16:39:30.230Z

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 - this can only be exploited when snaps are run on a virtual console.

Published: 2023-09-01T18:41:47.820Z
Updated: 2024-10-01T13:08:45.851Z