#ubuntu

Ubuntu Security Notice 5744-1 - It was discovered that libICE was using a weak mechanism to generate the session cookies. A local attacker could possibly use this issue to perform a privilege escalation attack.

Ubuntu Security Notice 5743-1 - It was discovered that LibTIFF incorrectly handled certain malformed images. If a user or automated system were tricked into opening a specially crafted image, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges.

Ubuntu Security Notice 5742-1 - It was discovered that JBIG-KIT incorrectly handled decoding certain large image files. If a user or automated system using JBIG-KIT were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service.

Ubuntu Security Notice 5741-1 - It was discovered that Exim incorrectly handled certain regular expressions. An attacker could use this issue to cause Exim to crash, resulting in a denial of service, or possibly execute arbitrary code.

An issue was discovered in the Linux kernel through 6.0.9. drivers/char/xillybus/xillyusb.c has a race condition and use-after-free during physical removal of a USB device.

Ubuntu Security Notice 5736-1 - It was discovered that ImageMagick incorrectly handled certain values when processing PDF files. If a user or automated system using ImageMagick were tricked into opening a specially crafted PDF file, an attacker could exploit this to cause a denial of service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM and Ubuntu 18.04 LTS. Zhang Xiaohui discovered that ImageMagick incorrectly handled certain values when processing image data. If a user or automated system using ImageMagick were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 22.10.

Ubuntu Security Notice 5740-1 - It was discovered that X.Org X Server incorrectly handled certain inputs. An attacker could use these issues to cause the server to crash, resulting in a denial of service, or possibly execute arbitrary code.

Ubuntu Security Notice 5739-1 - Several security issues were discovered in MariaDB and this update includes new upstream MariaDB versions to fix these issues. MariaDB has been updated to 10.3.37 in Ubuntu 20.04 LTS and to 10.6.11 in Ubuntu 22.04 LTS and Ubuntu 22.10. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

Ubuntu Security Notice 5638-3 - USN-5638-1 fixed a vulnerability in Expat. This update provides the corresponding updates for Ubuntu 16.04 ESM, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 22.10. This update also fixes a minor regression introduced in Ubuntu 18.04 LTS.

Ubuntu Security Notice 5737-1 - It was discovered that APR-util did not properly handle memory when using SDBM database files. A local attacker with write access to the database can make a program or process using these functions crash, and cause a denial of service.