libpam-radius-auth: Denial of Service -- Remote/Unauthenticated

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.0782
               USN-4290-2: libpam-radius-auth vulnerability
                               4 March 2020

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

Product:           libpam-radius-auth
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-9542  

Reference:         ESB-2020.0649
                   ESB-2020.0636

Original Bulletin: 
   https://usn.ubuntu.com/4290-2/

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USN-4290-2: libpam-radius-auth vulnerability
3 March 2020

libpam-radius-auth vulnerability
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 14.04 ESM
  o Ubuntu 12.04 ESM

Summary

libpam-radius-auth could be made to crash if it received specially crafted
network traffic.

Software Description

  o libpam-radius-auth - The PAM RADIUS authentication module

Details

USN-4290-1 fixed a vulnerability in libpam-radius-auth. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that libpam-radius-auth incorrectly handled certain long
passwords. A remote attacker could possibly use this issue to cause
libpam-radius-auth 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 14.04 ESM
    libpam-radius-auth - 1.3.17-0ubuntu4+esm1
Ubuntu 12.04 ESM
    libpam-radius-auth - 1.3.17-0ubuntu3.1

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 USN-4290-1
  o CVE-2015-9542

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