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========================================================================== Ubuntu Security Notice USN-5179-1 December 07, 2021 busybox vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.10 - Ubuntu 21.04 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in BusyBox.
Background Embedded devices with limited memory and storage resources are likely to leverage a tool such as BusyBox, which is marketed as the Swiss Army Knife of embedded Linux. BusyBox is a software suite of many useful Unix utilities, known as applets, that are packaged as a single executable file. Within BusyBox you can find a full-fledged shell, a DHCP client/server, and small utilities such as cp, ls, grep, and others.
By Tal Keren | May 28, 2021 Executive Summary Claroty has found a severe memory protection bypass vulnerability (CVE-2020-15782) in Siemens PLCs, the SIMATIC S7-1200 and S7-1500. An attacker could abuse this vulnerability on PLCs with disabled access protection to gain read and write access anywhere on the PLC and remotely execute malicious code.
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