glib-networking: Reduced Security -- Remote/Unauthenticated

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2227
                 USN-4405-1: GLib Networking vulnerability
                               29 June 2020

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           glib-networking
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Reduced Security -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-13645  

Original Bulletin: 
   https://usn.ubuntu.com/4405-1/

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running openjpeg2 check for an updated version of the software for 
         their operating system.

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USN-4405-1: GLib Networking vulnerability
29 June 2020

glib-networking vulnerability
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 20.04 LTS
  o Ubuntu 19.10
  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS

Summary

Fraudulent security certificates could allow sensitive information to be
exposed when accessing the Internet.

Software Description

  o glib-networking - Network extensions for GLib

Details

It was discovered that glib-networking skipped hostname certificate
verification if the application failed to specify the server identity. A remote
attacker could use this to perform a person-in-the-middle attack and expose
sensitive information.

Update instructions

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

Ubuntu 20.04 LTS
    glib-networking - 2.64.2-1ubuntu0.1
Ubuntu 19.10
    glib-networking - 2.62.1-1ubuntu0.1
Ubuntu 18.04 LTS
    glib-networking - 2.56.0-1ubuntu0.1
Ubuntu 16.04 LTS
    glib-networking - 2.48.2-1~ubuntu16.04.2

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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

References

  o CVE-2020-13645

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===========================================================================
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