cloud-init: Reduced Security -- Existing Account

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.0634
                        cloud-init security update
                             24 February 2020

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

Product:           cloud-init
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Reduced Security -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-8632 CVE-2020-8631 

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2020/02/msg00021.html

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

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Package        : cloud-init
Version        : 0.7.6~bzr976-2+deb8u1
CVE ID         : CVE-2020-8631 CVE-2020-8632
Debian Bug     : 951362 951363


CVE-2020-8631

    In cloud-init, relies on Mersenne Twister for a random password,
    which makes it easier for attackers to predict passwords, because
    rand_str in cloudinit/util.py calls the random.choice function.

CVE-2020-8632

    In cloud-init, rand_user_password in
    cloudinit/config/cc_set_passwords.py has a small default pwlen
    value, which makes it easier for attackers to guess passwords.

For Debian 8 "Jessie", these problems have been fixed in version
0.7.6~bzr976-2+deb8u1.

We recommend that you upgrade your cloud-init packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Best,
Utkarsh
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