Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.3162 USN-5496-1: cloud-init vulnerability 30 June 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: cloud-init Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2022-2084 Original Bulletin: https://ubuntu.com/security/notices/USN-5496-1 Comment: CVSS (Max): None available when published - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5496-1: cloud-init vulnerability 29 June 2022 cloud-init could be made to expose sensitive information. Releases o Ubuntu 22.04 LTS o Ubuntu 21.10 o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS Packages o cloud-init - initialization and customization tool for cloud instances Details Mike Stroyan discovered that cloud-init could log password hashes when reporting schema failures. An attacker with access to these logs could potentially use this to gain user credentials. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 o cloud-init - 22.2-0ubuntu1~22.04.3 Ubuntu 21.10 o cloud-init - 22.2-0ubuntu1~21.10.3 Ubuntu 20.04 o cloud-init - 22.2-0ubuntu1~20.04.3 Ubuntu 18.04 o cloud-init - 22.2-0ubuntu1~18.04.3 In general, a standard system update will make the necessary changes. Please note that sensitive information may have been logged to remote logging aggregators as well as to the system journal, and removal of such information may be required. Similarly, cloud-init configurations that log in non-default locations may also require the removal of sensitive information. References o CVE-2022-2084 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBYrz7cckNZI30y1K9AQi39g//SgoQdhRf3q/5RopRpUJxOh4kZ3/s3Y07 m3FMMxR+gh43n/zbO/qENesJ52aXu3jitAHQzwNU3qh4vMfdeUP20xr/qAK1YHTY o15Tf49o3W6xxKbPx1f0BJeGkpsPDh0SGTX+XqUpB29MileJ49e/U4/T9MadKjCZ 5YEOqEf3AglwgVWbHPFMdG0pWaXcE/sQWcsVS8a6qn1SPIonqYEWzV/Rss4yzCn2 dNb8yQG4RMX8h6+j9rP0AhyxmScSQUDpoXtyesWdhPvQEhzq1+RH5i2YCty2z2kx D7UnVnU9y0yvuMKmXeWnd+S6iLH59r/Pyuymwv2EDj0rmYxcnn7M85UWOSur/pNH wwoPzxUHeESjHuxVOIdzknUY03EE6kuyFXEHtTt8lSyyw/xkIetNMm7pam0SoQQS D49hjO4hrWMBLW56+8QMy8ctvNHQt8Nq2WGibA9ljOWkw4ntMrsRz2NoQFPNnAf8 3nlFIZdtmeYFvdRHhtKfU6VG6kk52dfax+Fj7Ph4aevsE4lEOEn5UHuIJExilS/A xP0E++webSFtwL7XvuVO/smgaUtT/G++z9XEQKZmW/Ws1hkumc2u+aks2/s/qDQT J8Ca4beJdGCekJNjz2bHy/rFqNKz6IQeKJZVikQFdIF+tiwKvH4+khY1JdlVPbon 0l4lQhFZj2w= =kicV -----END PGP SIGNATURE-----