Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3444 USN-4568-1: Brotli vulnerability 6 October 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Brotli Publisher: Ubuntu Operating System: Ubuntu UNIX variants (UNIX, Linux, OSX) Impact/Access: Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-8927 Original Bulletin: https://usn.ubuntu.com/4568-1/ Comment: This advisory references vulnerabilities in products which run on platforms other than Ubuntu. It is recommended that administrators running Brotli check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4568-1: Brotli vulnerability 05 October 2020 Brotli could be made to crash if it received a specially crafted input. Releases o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Packages o brotli - lossless compression algorithm and format (command line utility) Details It was discovered that Brotli incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 o brotli - 1.0.7-6ubuntu0.1 o libbrotli1 - 1.0.7-6ubuntu0.1 o python3-brotli - 1.0.7-6ubuntu0.1 Ubuntu 18.04 o brotli - 1.0.3-1ubuntu1.3 o libbrotli1 - 1.0.3-1ubuntu1.3 o python-brotli - 1.0.3-1ubuntu1.3 o python3-brotli - 1.0.3-1ubuntu1.3 Ubuntu 16.04 o brotli - 1.0.3-1ubuntu1~16.04.2 o libbrotli1 - 1.0.3-1ubuntu1~16.04.2 o python-brotli - 1.0.3-1ubuntu1~16.04.2 o python3-brotli - 1.0.3-1ubuntu1~16.04.2 In general, a standard system update will make all the necessary changes. References o CVE-2020-8927 - --------------------------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 iQIVAwUBX3vPO+NLKJtyKPYoAQiuyQ/8DxBhWmaJuNF+vxB9XbScBWsFgZyaJ8wU 9wS3l8IZDr/cBXaeLSIgb5U2sATFlgUsDRqxlG+v5xpY+80RiRcJQ6ltLCEYlCuA gRVhTsZ8DvqWzx0zd+GpKgPdIbJ54EpbvZH1ZhM0iCJRh5K3pZTsGZ5qntF35QD7 HHamL+nZrxyu+twGnSo83xCU508l9+HPXOKh+PJJkIHf09Ee3er4ZTBiktSemep/ 7xNN7IE7LjWOHrUgj+BJ/VWYIVijWdvbS2vohWK0EkovBuacRFDRq9ZCJb4d+npe 00uB4tAo8PATcPcknbr/sn28/sYiixPmM+smEL9ZvL4rauciFaSYfceUNh4ykt4s 4sV0XDNu7uxdSJrkJlgKDIojT6wLb5zoNZi1p47WW5VCT6PjaCt7oxcDbvKtgyVi Jr8TGvtJ/Yw2YvnvMPXjHIg0dFIYBAZ3hbx9REQC+cAo1PJgwEPOL2S3hRWNgLQH 0OcFdZtbFZh0GAuc9PoKcxVELn1TWL2lI2hSSi98bwsb/+GH635LSwPeDD0sQPOS s2DTkOFiDY6qTTxEUPMS0pobapZ2p7jnO+Ujj8fa3DBA84fdeFIGqKIquMbuHGMo /rtNDOgxdv7dgYDUT4p3c3uhCHVwIUKVDEwRMLECur1Dn9DBqm7p4OHRfpjeaZmP CQE/P0GGSMU= =APAu -----END PGP SIGNATURE-----