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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3465 USN-4573-1: Vino vulnerabilities 8 October 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Vino Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Access Privileged Data -- Remote/Unauthenticated Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-14404 CVE-2020-14403 CVE-2020-14402 CVE-2020-14397 CVE-2019-15681 CVE-2018-7225 CVE-2014-6053 Reference: ESB-2020.2972 ESB-2020.2248 ESB-2020.1266 ESB-2019.4523 Original Bulletin: https://usn.ubuntu.com/4573-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4573-1: Vino vulnerabilities 07 October 2020 Several security issues were fixed in Vino. Releases o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Packages o vino - VNC server for GNOME Details Nicolas Ruff discovered that Vino incorrectly handled large ClientCutText messages. A remote attacker could use this issue to cause the server to crash, resulting in a denial of service. (CVE-2014-6053) It was discovered that Vino incorrectly handled certain packet lengths. A remote attacker could possibly use this issue to obtain sensitive information, cause a denial of service, or execute arbitrary code. (CVE-2018-7225) Pavel Cheremushkin discovered that an information disclosure vulnerability existed in Vino when sending a ServerCutText message. An attacker could possibly use this issue to expose sensitive information. (CVE-2019-15681) It was discovered that Vino incorrectly handled region clipping. A remote attacker could possibly use this issue to cause Vino to crash, resulting in a denial of service. (CVE-2020-14397) It was discovered that Vino incorrectly handled encodings. A remote attacker could use this issue to cause Vino to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-14402, CVE-2020-14403, CVE-2020-14404) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 o vino - 3.22.0-5ubuntu2.1 Ubuntu 18.04 o vino - 3.22.0-3ubuntu1.1 Ubuntu 16.04 o vino - 3.8.1-0ubuntu9.3 After a standard system update you need to restart your session to make all the necessary changes. References o CVE-2014-6053 o CVE-2018-7225 o CVE-2019-15681 o CVE-2020-14404 o CVE-2020-14402 o CVE-2020-14397 o CVE-2020-14403 Related notices o USN-4407-1 : libvncserver, libvncclient1, libvncserver1 o USN-3618-1 : libvncserver, libvncserver0, libvncclient1, libvncserver1 o USN-4434-1 : libvncserver, libvncclient1, libvncserver1 o USN-2365-1 : libvncserver0, libvncserver o USN-4547-1 : italc, italc-client, italc-master, libitalccore - --------------------------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. 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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 iQIVAwUBX35KSeNLKJtyKPYoAQiytQ//dQDnTkmNRlHpVnODXJc5D8mQj2wd8klT CSiu3XrnwoFBZ0NE81+gtZ2bWZahmsvKfE4MiJNzyMhNA6tgQQZbemUf6viz9yvz oBOZd6lnz0DcccMJeE5M3ovuOsYH438aty0Gl2j/E+nzxjRYdfupa/5CCoCJgL4n oSLK11TG5dlQSLVqdWzEe4s4JcxYWIOo1qeB+XbWC89h9ZAKbiuAZ/a2d4ebsN8E lK8lSCVLOHMPQm76VHWF0y4QQGQ99hfeaayCpzFatGRg3RpvwNJkKbHe50e1kvAk u7+pCQEiWfpdbolDQ2I+bQOCzsnhkRFsJG40t8XYC7LVgAIKq/nBWZBd2DOL4hF1 S5uljkDcvFeiaOI6tSrNCjY9nXOJo2M/wxuJPjjCNseLf1L6yBhU8lDNuqgg0XED KnP4FKZ46JsNYjkTeImmCzEM39FRDiqNof0+hh2lNlAxMclIiLMOwn/k7mQ7LKIZ GdZcyj75TdrqB9Imb+GPtZsG8Cvfp2JzZgf2QItdA6jPZXb5/Zw2XRFV3CjV/Wnw UYgJN+UixHeQv0T8NaNCO0VEfl+4Nl0KTDfqObEQrex3DkRLIb7ipFvbaFWjJ5QO KOZtB6aqzq+k37//4eAER0C5UcK24b5PYJu10pNxPbgoi5nAp5zMdzbakeA758FQ zMFsJbhhu/o= =uX2a -----END PGP SIGNATURE-----