#ubuntu

dizqueTV version 1.5.3 suffers from a remote code execution vulnerability.

Ubuntu Security Notice 7052-1 - It was discovered that GNOME Shell mishandled extensions that fail to reload, possibly leading to extensions staying enabled on the lock screen. An attacker could possibly use this issue to launch applications, view sensitive information, or execute arbitrary commands. It was discovered that the GNOME Shell incorrectly handled certain keyboard inputs. An attacker could possibly use this issue to invoke keyboard shortcuts, and potentially other actions while the workstation was locked.

Ubuntu Security Notice 7051-1 - Fabian Bäumer, Marcus Brinkmann, Joerg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being downgraded. This issue is known as the Terrapin attack. This update adds protocol extensions to mitigate this issue.

Ubuntu Security Notice 7047-1 - Vladimír Čunát discovered that Knot Resolver incorrectly handled input during DNSSEC validation. A remote attacker could possibly use this issue to bypass certain validations. Vladimír Čunát discovered that Knot Resolver incorrectly handled input during DNSSEC validation. A remote attacker could possibly use this issue to downgrade DNSSEC-secure domains to a DNSSEC-insecure state, resulting in a domain hijacking attack.

Ubuntu Security Notice 7050-1 - Benoit Côté-Jodoin and Michael Nipper discovered that Devise-Two-Factor incorrectly handled one-time password validation. An attacker could possibly use this issue to intercept and re-use a one-time password. Garrett Rappaport discovered that Devise-Two-Factor incorrectly handled generating multi-factor authentication codes. An attacker could possibly use this issue to generate valid multi-factor authentication codes.

Ubuntu Security Notice 7043-2 - USN-7043-1 fixed a vulnerability in cups-filters. This update provides the corresponding update for Ubuntu 18.04 LTS. Simone Margaritelli discovered that the cups-filters cups-browsed component could be used to create arbitrary printers from outside the local network. In combination with issues in other printing components, a remote attacker could possibly use this issue to connect to a system, created manipulated PPD files, and execute arbitrary code when a printer is used. This update disables support for the legacy CUPS printer discovery protocol.

Ubuntu Security Notice 7049-1 - It was discovered that PHP incorrectly handled parsing multipart form data. A remote attacker could possibly use this issue to inject payloads and cause PHP to ignore legitimate data. It was discovered that PHP incorrectly handled the cgi.force_redirect configuration option due to environment variable collisions. In certain configurations, an attacker could possibly use this issue bypass force_redirect restrictions.

Ubuntu Security Notice 6964-2 - USN-6964-1 fixed a vulnerability in ORC. This update provides the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Noriko Totsuka discovered that ORC incorrectly handled certain specially crafted files. An attacker could possibly use this issue to execute arbitrary code.

Ubuntu Security Notice 7022-2 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

Ubuntu Security Notice 7041-2 - USN-7041-1 fixed a vulnerability in CUPS. This update provides the corresponding update for Ubuntu 18.04 LTS. Simone Margaritelli discovered that CUPS incorrectly sanitized IPP data when creating PPD files. A remote attacker could possibly use this issue to manipulate PPD files and execute arbitrary code when a printer is used.