SECURITY

USN-4451-2: ppp vulnerability USN-4451-1 fixed a vulnerability in ppp. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: Thomas Chauchefoin discovered that ppp incorrectly handled module loading. A local attacker could use this issue to load arbitrary kernel modules and possibly execute arbitrary code. Source: USN-4451-2: ppp vulnerability

USN-4453-1: OpenJDK 8 vulnerabilities Johannes Kuhn discovered that OpenJDK 8 incorrectly handled access control contexts. An attacker could possibly use this issue to execute arbitrary code. (CVE-2020-14556) Philippe Arteau discovered that OpenJDK 8 incorrectly verified names in TLS server’s X.509 certificates. An attacker could possibly use this issue to obtain sensitive information. (CVE-2020-14577) It was discovered that OpenJDK 8 incorrectly handled exceptions in DerInputStream class and in the DerValue.equals() method. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-14578, CVE-2020-14579) It was discovered that OpenJDK 8 incorrectly handled image files. An attacker could possibly use this issue to obtain sensitive information. (CVE-2020-14581) Markus Loewe discovered that OpenJDK 8 incorrectly handled concurrent access in java.nio.Buffer class. An attacker could use this issue to bypass sandbox restrictions. (CVE-2020-14583) It was discovered that OpenJDK 8 incorrectly handled transformation [ more… ]

USN-4441-2: MySQL regression USN-4441-1 fixed vulnerabilities in MySQL. The new upstream version changed compiler options and caused a regression in certain scenarios. This update fixes the problem. Original advisory details: Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been updated to 8.0.21 in Ubuntu 20.04 LTS. Ubuntu 16.04 LTS and Ubuntu 18.04 LTS have been updated to MySQL 5.7.31. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes. Please see the following for more information: https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-31.html https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-21.html https://www.oracle.com/security-alerts/cpujul2020.html Source: USN-4441-2: MySQL regression

USN-4432-2: GRUB2 regression USN-4432-1 fixed vulnerabilities in GRUB2 affecting Secure Boot environments. Unfortunately, the update introduced regressions for some BIOS systems (either pre-UEFI or UEFI configured in Legacy mode), preventing them from successfully booting. This update addresses the issue. Users with BIOS systems that installed GRUB2 versions from USN-4432-1 should verify that their GRUB2 installation has a correct understanding of their boot device location and installed the boot loader correctly. We apologize for the inconvenience. Original advisory details: Jesse Michael and Mickey Shkatov discovered that the configuration parser in GRUB2 did not properly exit when errors were discovered, resulting in heap-based buffer overflows. A local attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. (CVE-2020-10713) Chris Coulson discovered that the GRUB2 function handling code did not properly handle a function being redefined, leading to a [ more… ]

USN-4452-1: libvirt vulnerability Trent Shea discovered that the libvirt package set incorrect permissions on the UNIX domain socket. A local attacker could use this issue to access libvirt and escalate privileges. Source: USN-4452-1: libvirt vulnerability