Ubuntu 5244-2: DBus vulnerability | LinuxSecurity.com
==========================================================================
Ubuntu Security Notice USN-5244-2
May 09, 2022

dbus vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

DBus could be made to crash if it received specially crafted
input.

Software Description:
- dbus: simple interprocess messaging system

Details:

USN-5244-1 fixed a vulnerability in DBus. This update provides
the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:

  Daniel Onaca discovered that DBus contained a use-after-free 
vulnerability,
  caused by the incorrect handling of usernames sharing the same UID. An
  attacker could possibly use this issue to cause DBus to crash, resulting
  in a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
   dbus                            1.12.16-2ubuntu2.2
   libdbus-1-3                     1.12.16-2ubuntu2.2

Ubuntu 18.04 LTS:
   dbus                            1.12.2-1ubuntu1.3
   libdbus-1-3                     1.12.2-1ubuntu1.3

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-5244-2
   https://ubuntu.com/security/notices/USN-5244-1
   CVE-2020-35512

Package Information:
   https://launchpad.net/ubuntu/+source/dbus/1.12.16-2ubuntu2.2
   https://launchpad.net/ubuntu/+source/dbus/1.12.2-1ubuntu1.3

Ubuntu 5244-2: DBus vulnerability

May 9, 2022

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: DBus could be made to crash if it received specially crafted input. Software Description: - dbus: simple interprocess messaging system Details: USN-5244-1 fixed a vulnerability in DBus. This update provides the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details:  Daniel Onaca discovered that DBus contained a use-after-free vulnerability,  caused by the incorrect handling of usernames sharing the same UID. An  attacker could possibly use this issue to cause DBus to crash, resulting  in a denial of service.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS:   dbus                            1.12.16-2ubuntu2.2   libdbus-1-3                     1.12.16-2ubuntu2.2 Ubuntu 18.04 LTS:   dbus                            1.12.2-1ubuntu1.3   libdbus-1-3                     1.12.2-1ubuntu1.3 After a standard system update you need to reboot your computer to make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-5244-2

  https://ubuntu.com/security/notices/USN-5244-1

  CVE-2020-35512

Severity
Ubuntu Security Notice USN-5244-2

Package Information

  https://launchpad.net/ubuntu/+source/dbus/1.12.16-2ubuntu2.2   https://launchpad.net/ubuntu/+source/dbus/1.12.2-1ubuntu1.3

We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.