#ubuntu

Ubuntu Security Notice 5580-1 - It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the virtual terminal driver in the Linux kernel did not properly handle VGA console font changes, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Tenda AC1206 V15.03.06.23 was discovered to contain a command injection vulnerability via the mac parameter in the function formWriteFacMac.

PrinterLogic Windows Client through 25.0.0.676 allows attackers to execute directory traversal. Authenticated users with prior knowledge of the driver filename could exploit this to escalate privileges or distribute malicious content.

A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

A flaw was found in glibc. The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data.

A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.

Ubuntu Security Notice 5578-1 - It was discovered that Open VM Tools incorrectly handled certain requests. An attacker inside the guest could possibly use this issue to gain root privileges inside the virtual machine.

Ubuntu Security Notice 5576-1 - It was discovered that Twisted incorrectly parsed some types of HTTP requests in its web server implementation. In certain proxy or multi-server configurations, a remote attacker could craft malicious HTTP requests in order to obtain sensitive information.

Ubuntu Security Notice 5577-1 - Asaf Modelevsky discovered that the Intel 10GbE PCI Express Ethernet driver for the Linux kernel performed insufficient control flow management. A local attacker could possibly use this to cause a denial of service. It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice 5575-2 - USN-5575-1 fixed vulnerabilities in Libxslt. This update provides the corresponding updates for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Nicolas Grégoire discovered that Libxslt incorrectly handled certain XML. An attacker could possibly use this issue to expose sensitive information or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS.