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             AUSCERT External Security Bulletin Redistribution

                               ESB-2022.0256
                      USN-5243-1: AIDE vulnerability
                              21 January 2022

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

Product:           AIDE
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Root Compromise   -- Existing Account
                   Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-45417  

Reference:         ESB-2022.0251

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-5243-1
   https://ubuntu.com/security/notices/USN-5243-2

Comment: This bulletin contains two (2) Ubuntu security advisories.

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USN-5243-1: AIDE vulnerability
20 January 2022

AIDE could be made to crash or run programs as an administrator if it
opened a specially crafted file.
Releases

  o Ubuntu 21.10
  o Ubuntu 21.04
  o Ubuntu 20.04 LTS
  o Ubuntu 18.04 LTS

Packages

  o aide - Advanced Intrusion Detection Environment

Details

David Bouman discovered that AIDE incorrectly handled base64 operations. A
local attacker could use this issue to cause AIDE to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 21.10

  o aide - 0.17.3-4ubuntu0.1

Ubuntu 21.04

  o aide - 0.17.3-1ubuntu0.1

Ubuntu 20.04

  o aide - 0.16.1-1ubuntu0.1

Ubuntu 18.04

  o aide - 0.16-3ubuntu0.1

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

References

  o CVE-2021-45417

Related notices

  o USN-5243-2 : aide-xen, aide, aide-common, aide-dynamic

- ----------------------------------------------------------------------------------------------------

USN-5243-2: AIDE vulnerability
20 January 2022

AIDE could be made to crash or run programs as an administrator if it
opened a specially crafted file.
Releases

  o Ubuntu 16.04 ESM
  o Ubuntu 14.04 ESM

Packages

  o aide - Advanced Intrusion Detection Environment - static binary

Details

USN-5243-1 fixed a vulnerability in aide. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

David Bouman discovered that AIDE incorrectly handled base64 operations. A
local attacker could use this issue to cause AIDE to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 16.04

  o aide - 0.16~a2.git20130520-3ubuntu0.1~esm1
    Available with UA Infra or UA Desktop

Ubuntu 14.04

  o aide - 0.16~a2.git20130520-2ubuntu0.1+esm1
    Available with UA Infra or UA Desktop

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

References

  o CVE-2021-45417

Related notices

  o USN-5243-1 : aide-xen, aide-common, aide-dynamic, aide

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