canonical ubuntu linux 22.04 vulnerabilities and exploits

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4.7

CVSSv3

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).

Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 22.04 Canonical Ubuntu Linux 22.10

7.8

CVSSv3

It exists 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.

Linux Linux Kernel Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 22.04

1 Github repository

7.8

CVSSv3

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.

Canonical Accountsservice Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 22.04 Canonical Ubuntu Linux 22.10 Canonical Ubuntu Linux 23.04

7.8

CVSSv3

A privilege escalation attack was found in apport-cli 2.26.0 and previous versions which is similar to CVE-2023-26604. If a system is specially configured to allow unprivileged users to run sudo apport-cli, less is configured as the pager, and the terminal size can be set: a loca...

Canonical Apport Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 22.04 Canonical Ubuntu Linux 22.10

3 Github repositories

7

CVSSv3

io_uring UAF, Unix SCM garbage collection

Linux Linux Kernel Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 22.04 Canonical Ubuntu Linux 22.10

2 Github repositories

5.5

CVSSv3

Sensitive data could be exposed in world readable logs of cloud-init before version 22.3 when schema failures are reported. This leak could include hashed passwords.

Canonical Cloud-init Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 21.10 Canonical Ubuntu Linux 22.04

7

CVSSv3

Race condition in snap-confine's must_mkdir_and_open_with_perms()

Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 16.04 Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 22.04 Canonical Ubuntu Linux 22.10 Canonical Snapd

1 Github repository

7.8

CVSSv3

It exists that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.

Linux Linux Kernel Canonical Ubuntu Linux 14.04 Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 16.04 Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 22.04

4 Github repositories

7.8

CVSSv3

It exists that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

Linux Linux Kernel Canonical Ubuntu Linux 14.04 Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 16.04 Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 22.04

8 Github repositories

10

CVSSv3

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-te...

Canonical Snapd Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 16.04 Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 22.04 Canonical Ubuntu Linux 22.10 Canonical Ubuntu Linux 23.04

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