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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0288 USN-4703-1: Mutt vulnerability 27 January 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: mutt Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2021-3181 Reference: ESB-2021.0280 ESB-2021.0237 Original Bulletin: https://ubuntu.com/security/notices/USN-4703-1 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4703-1: Mutt vulnerability 25 January 2021 Mutt could be made to denial of service if it received a specially crafted email message. Releases o Ubuntu 20.10 o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Packages o mutt - text-based mailreader supporting MIME, GPG, PGP and threading Details It was discovered that Mutt incorrectly handled certain email messages. An attacker could possibly use this issue to cause a denial of service. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10 o mutt - 1.14.6-1ubuntu0.2 Ubuntu 20.04 o mutt - 1.13.2-1ubuntu0.4 Ubuntu 18.04 o mutt - 1.9.4-3ubuntu0.5 Ubuntu 16.04 o mutt - 1.5.24-1ubuntu0.6 In general, a standard system update will make all the necessary changes. References o CVE-2021-3181 - --------------------------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: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYBC3/+NLKJtyKPYoAQj+JRAArqeOTX1mxgmeGlC0kT/gc3T7PqLz0jMy UzKhrTCz+7DNumwIKThutjLzYZJ22RpFnP0miijaaMKGsGBJiR+oRFOI+2satR5j 47hG//V8JkmcD58VLflsUAJfPY1lShgpXegVwnZXnybYptm8VIKitsLlbXP9RUEz SYrD4Z9p1BZYWRhGiKhanrLfX4LPf/tnMi6WDH8a35Ys2Phot3SSwPQDsY1HBK1B vdoZiANjyqbzv2Am2oorkcjg6lWcGxG7VTh3FTNg/2dFz4uP1XIwfs0oUn4rEzSz Gf42gi5r35F8Wk7ydbBrKcp0oPczHgy2j5JuFgOaBuuxwySW/rJEEs8LVofM5GJ6 UGr1eQyIBt28cnzKzS+5ltTv+GHbk4nLHhkt3VlxvvP94U2thOQAUGBJ9N2AkQiv IpxJ8EEHNpz5oE5lLWt+oq61dnbxJbHM+Dk1pbXu9MAtJ6vbc2DuOBUWq7cwKlXs qgKHVFAMeAO1W5U3uDnVgrl39ehTn/oD0CQz4HmqIFSZGZ+111eNjVvavXBl2GUg EKwUHEkikOv2JU9Pt9VYJaF01hfHAxALemOmysHzIE/9i6if7aiS928cfsPmu1kv 7QTUpjqqB+dCG/NZRp/khXdy8VcNlL6dlZbWjyI1c5ZOD4rmOt1o8/0ufNPITWhA 2aGx8gakO9I= =YqhD -----END PGP SIGNATURE-----