JDK-8288367: CPU Shares Ignored When Computing Active Processor Count
Previous JDK releases used an incorrect interpretation of the Linux cgroups parameter cpu.shares. This might cause the JVM to use fewer CPUs than available, leading to an under utilization of CPU resources when the JVM is used inside a container.
Starting from this JDK release, by default, the JVM no longer considers cpu.shares when deciding the number of threads to be used by the various thread pools. The -XX:+UseContainerCpuShares command-line option can be used to revert to the previous behaviour. This option is deprecated and may be removed in a future JDK release.
A vulnerability has been found in Anvsoft PDFMate PDF Converter Pro 1.7.5.0 and classified as critical. The manipulation leads to memory corruption. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Simon Josefsson discovered an out-of-bounds memory read in GNU SASL,
an implementation of the Simple Authentication and Security Layer
framework, which could result in denial of service.
FortiGuard Labs is aware of the discovery of a new Linux malware variant that is not only complex in design, but modular. Dubbed ‘Lightning Framework’, the malware consists of various modules for different functionality. At this time, there is no report of Lightning Framework being used or observed in the wild attacks.Why is this Significant?This is significant because Lightning Framework is a previously unknown modular malware for Linux that can download and install different modules (including rootkits) and plugins to a targeted machine. While there are no reports of the malware being used in the wild, it can be safely surmised that the Lightning Framework can be expected and incorporated in real attacks soon.What is Lightning Framework?Lightning Framework is a modular malware that consists of various modules for different functionality.A Lightning Framework infection starts with an installation of the Lightning.Downloader module on the compromised Linux machine. This module connects to its Command-and-Control (C2) server and is used to download other additional and plugins including Lightning.Core. Lightning.Core is the main module of Lightning Framework and is responsible for receiving commands from the C2 server and to execute remote commands. Other modules that are downloaded by Lightning.Downloader are:Linux.Plugin.Lightning.SsHijacker, Linux.Plugin.Lightning.Sshd, Linux.Plugin.Lightning.Nethogs, Linux.Plugin.Lightning.iftop, and Linux.Plugin.Lightning.iptraf.According to the Intezer blog the modules: Linux.Plugin.Lightning.SsHijacker, Linux.Plugin.Lightning.Nethogs, Linux.Plugin.Lightning.iftop, and Linux.Plugin.Lightning.iptraf are referenced only in the source and actual files have not been discovered in the wild.Furthermore, to add insult to injury – Lightning Framework can open a SSH backdoor using the Linux.Plugin.Lightning.Sshd plugin upon receiving a remote command.What is the Status of Coverage?FortiGuard Labs provides the following AV coverage against available modules and plugins of Lightning Framework:Linux/Agent.PA!trLinux/Agent.B5B5!trLinux/Agent.C492!tr
FortiGuard Labs is aware of a report that a new spyware for Mac was discovered in the field. Dubbed “CloudMensis”, the spyware has been active since at least February 2022 and allows an attacker to perform various activities on a compromised machine such as capturing keystrokes, taking screenshots, downloading and executing remote files, and exfiltrating email messages and attachments.Why is this Significant?This is significant because CloudMensis is a previously unknown spyware for macOS that can perform various activities on a compromised machine. Also, CloudMensis is equipped with a feature to bypass Transparency, Consent, and Control (TCC), a security feature in Mac, to allow itself to perform nefarious actions involving sensitive data.What is CloudMensis?CloudMensis is a new spyware for macOS.According to a security vendor ESET, a downloader was deployed to the compromised Mac machine once an attacker gains an administrative access through unknown means. The downloader then downloads CloudMensis from a Cloud storage service and installs it on the targeted machine.The report indicates CloudMensis allows an attacker to perform activities such as:Downloading and executing remote filesExfiltrating email messages and attachmentsKeyloggingTaking screenshotsRunning searches in removable drivesUploading stolen information to Cloud storages in a password-protected zip fileAlso, CloudMensis is capable of bypassing Transparency, Consent, and Control (TCC), a security feature introduced in macOS 10.8 (OS X Mountain Lion), that allows the user to configure privacy settings for macOS apps. TCC usually manifests to the user in a form of a prompt window that asks the user to either allow or deny apps to perform certain actions involving sensitive information such as access to Web cams, microphones and iCloud. The TCC configuration is stored in TCC.db, which is protected by System Integrity Protection (SIP). If SIP is disabled, CloudMensis grants itself a permission by adding entries to the database. If SIP is enabled but the installed macOS version is earlier than 10.15.6, CloudMensis exploits a known vulnerability patched in July 2020 in order to add entries to the TCC database.What is the Status of Coverage?FortiGuard Labs customers with the latest (AV) definitions are protected against CloudMensis with the following coverage:OSX/Agent.BW!trAdware/CloudMensis!OSXAdware/CloudMensis
A vulnerability was found in InfiniteWP Client Plugin 1.5.1.3/1.6.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation leads to injection. The attack can be launched remotely. Upgrading to version 1.6.1.1 is able to address this issue. It is recommended to upgrade the affected component.
