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Ubuntu 18.04 LTS: USN-5189-1 Moderate GLib Privilege Escalation

ubuntu
Calendar Grey December 13, 2021
Dist Ubuntu Esm H88
The GLib library contains a vulnerability that may allow for unauthorized access elevation. It is crucial to update your system promptly to minimize potential threats.
GLib could be used to escalate privilege if it received specially crafted input.

Summary

GLib could be used to escalate privilege if it received specially crafted

input.

Software Description:

- glib2.0: GLib library of C routines

Details:

It was discovered that GLib incorrectly handled certain environment

variables.

An attacker could possibly use this issue to escalate privileges.

Topics%20covered

Topics Covered

security advisory moderate security issue privilege escalation ubuntu linux update glib

Update Instructions

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

Ubuntu 18.04 LTS:
   libglib2.0-0                    2.56.4-0ubuntu0.18.04.9
   libglib2.0-bin                  2.56.4-0ubuntu0.18.04.9
   libglib2.0-data                 2.56.4-0ubuntu0.18.04.9
   libglib2.0-dev                  2.56.4-0ubuntu0.18.04.9

Ubuntu 16.04 ESM:
   libglib2.0-0                    2.48.2-0ubuntu4.8+esm1
   libglib2.0-bin                  2.48.2-0ubuntu4.8+esm1
   libglib2.0-data                 2.48.2-0ubuntu4.8+esm1
   libglib2.0-dev                  2.48.2-0ubuntu4.8+esm1

Ubuntu 14.04 ESM:
   libglib2.0-0                    2.40.2-0ubuntu1.1+esm4
   libglib2.0-bin                  2.40.2-0ubuntu1.1+esm4
   libglib2.0-data                 2.40.2-0ubuntu1.1+esm4
   libglib2.0-dev                  2.40.2-0ubuntu1.1+esm4

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5189-1

CVE-2021-3800

December 13, 2021

Topics%20covered

Topics Covered

security advisory moderate security issue privilege escalation ubuntu linux update glib

Package Information

https://launchpad.net/ubuntu/+source/glib2.0/2.56.4-0ubuntu0.18.04.9

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