#linux

Red Hat Security Advisory 2022-6783-01 - Red Hat Single Sign-On 7.5 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. This release of Red Hat Single Sign-On 7.5.3 on RHEL 8 serves as a replacement for Red Hat Single Sign-On 7.5.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include HTTP request smuggling, code execution, cross site scripting, and denial of service vulnerabilities.

Ubuntu Security Notice 5655-1 - 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. Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service.

Ubuntu Security Notice 5654-1 - 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. Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information.

An update for squid is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-41318: squid: buffer-over-read in SSPI and SMB authentication

Hello everyone! Five years ago I wrote a blogpost about OpenSCAP. But it was only about the SCAP Workbench GUI application and how to use it to detect security misconfigurations. Alternative video link (for Russia): https://vk.com/video-149273431_456239104 This time, I will install the OpenSCAP command line tool on Ubuntu and use it to check for vulnerabilities […]

Red Hat Security Advisory 2022-6763-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly. Issues addressed include a memory leak vulnerability.

Red Hat Security Advisory 2022-6764-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly. Issues addressed include a memory leak vulnerability.

Ubuntu Security Notice 5652-1 - 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. Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service.

Red Hat Security Advisory 2022-6765-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly. Issues addressed include a memory leak vulnerability.

Red Hat Security Advisory 2022-6766-01 - Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Issues addressed include denial of service, information leakage, and open redirection vulnerabilities.