SECURITY

USN-4642-1: PDFResurrect vulnerability It was discovered that PDFResurrect incorrectly handled certain memory operations during PDF summary generation. An attacker could use this to cause out-of-bounds writes, resulting in a denial of service (system crash) or arbitrary code execution. Source: USN-4642-1: PDFResurrect vulnerability

USN-4641-1: libextractor vulnerabilities It was discovered that Libextractor incorrectly handled zero sample rate. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-15266) It was discovered that Libextractor incorrectly handled certain FLAC metadata. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-15267) It was discovered that Libextractor incorrectly handled certain specially crafted files. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-15600, CVE-2018-16430, CVE-2018-20430) It was discovered that Libextractor incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-15601) It was discovered that Libextractor incorrectly handled integers. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-15602) It was discovered that Libextractore incorrectly handled certain crafted files. An attacker could possibly use this issue [ more… ]

USN-4640-1: PulseAudio vulnerability James Henstridge discovered that an Ubuntu-specific patch caused PulseAudio to incorrectly handle snap client connections. An attacker could possibly use this to expose sensitive information. Source: USN-4640-1: PulseAudio vulnerability

USN-4634-2: OpenLDAP vulnerabilities USN-4634-1 fixed several vulnerabilities in OpenLDAP. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: It was discovered that OpenLDAP incorrectly handled certain malformed inputs. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service. Source: USN-4634-2: OpenLDAP vulnerabilities

USN-4637-2: Firefox vulnerabilities USN-4637-1 fixed vulnerabilities in Firefox. This update provides the corresponding updates for Ubuntu 16.04 LTS. Original advisory details: 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, obtain sensitive information across origins, bypass security restrictions, conduct phishing attacks, conduct cross-site scripting (XSS) attacks, bypass Content Security Policy (CSP) restrictions, conduct DNS rebinding attacks, or execute arbitrary code. Source: USN-4637-2: Firefox vulnerabilities