Ubuntu security

USN-3968-3: Sudo vulnerabilities USN-3968-1 fixed several vulnerabilities in Sudo. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Florian Weimer discovered that Sudo incorrectly handled the noexec restriction when used with certain applications. A local attacker could possibly use this issue to bypass configured restrictions and execute arbitrary commands. (CVE-2016-7076, CVE-2016-7032) Source: USN-3968-3: Sudo vulnerabilities

USN-4546-1: Firefox vulnerabilities Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, conduct cross-site scripting (XSS) attacks, spoof the site displayed in the download dialog, or execute arbitrary code. Source: USN-4546-1: Firefox vulnerabilities

USN-4545-1: libquicktime vulnerabilities It was discovered that libquicktime incorrectly handled certain malformed MP4 files. If a user were tricked into opening a specially crafted MP4 file, a remote attacker could use this issue to cause a denial of service (resource exhaustion). (CVE-2017-9122) It was discovered that libquicktime incorrectly handled certain malformed MP4 files. If a user were tricked into opening a specially crafted MP4 file, a remote attacker could use this issue to cause libquicktime to crash, resulting in a denial of service. (CVE-2017-9123, CVE-2017-9124, CVE-2017-9126, CVE-2017-9127, CVE-2017-9128) It was discovered that libquicktime incorrectly handled certain malformed MP4 files. If a user were tricked into opening a specially crafted MP4 file, a remote attacker could use this issue to cause a denial of service. (CVE-2017-9125) Source: USN-4545-1: libquicktime vulnerabilities

USN-4541-1: Gnuplot vulnerabilities Tim Blazytko, Cornelius Aschermann, Sergej Schumilo and Nils Bars discovered that Gnuplot did not properly validate string sizes in the df_generate_ascii_array_entry function. An attacker could possibly use this issue to cause a heap buffer overflow, resulting in a denial of service attack or arbitrary code execution. (CVE-2018-19490) Tim Blazytko, Cornelius Aschermann, Sergej Schumilo and Nils Bars discovered that Gnuplot did not properly validate string sizes in the PS_options function when the Gnuplot postscript terminal is used as a backend. An attacker could possibly use this issue to cause a buffer overflow, resulting in a denial of service attack or arbitrary code execution. (CVE-2018-19491) Tim Blazytko, Cornelius Aschermann, Sergej Schumilo and Nils Bars discovered that Gnuplot did not properly validate string sizes in the cairotrm_options function when the Gnuplot postscript terminal is used as a backend. An attacker [ more… ]

USN-4543-1: Sanitize vulnerability Michał Bentkowski discovered that Sanitize did not properly sanitize some math or svg HTML under certain circumstances. A remote attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2020-4054) Source: USN-4543-1: Sanitize vulnerability