Davoud Teimouri Blog

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What’s RAMBleed? Steal Sensitive Data From Computer Memory

RAMBleed is a side-channel attack that enables an attacker to read out physical memory belonging to other processes. The implications of violating arbitrary privilege boundaries are numerous, and vary in severity based on the other software running on the target machine. As an example, in our paper we demonstrate an attack against OpenSSH in which we use RAMBleed to leak a 2048 bit RSA key. However, RAMBleed can be used for reading other data as well.

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Microsoft Windows Updates, June 11, 2019

This month the vendor has patched 88 vulnerabilities, 20 of which are rated Critical. As always, customers are advised to follow these security best practices: Install vendor patches as soon as they are available....

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Microsoft Security Update Guide June 2019

Such as previous months, Microsoft has released “Microsoft Security Update Guide” for Microsoft’s products. The guide is contains details of security vulnerabilities and release patches. the guide is useful to find affected product and applying specific patches.

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What’s redhat-upgrade-tool?

The redhat-upgrade-tool provides a way to upgrade Red Hat Enterprise Linux 6 systems to Red Hat Enterprise Linux 7. The redhat-upgrade-tool command is a program to collect the information for upgrade and prepare the environment. It includes downloading kernel, and initial ram image, and packages.

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Oracle Linux Virtualization Manager

This new server virtualization management platform can be easily deployed to configure, monitor, and manage an Oracle Linux Kernel-based Virtual Machine (KVM) environment with enterprise-grade performance and support from Oracle. Red Hat did it and developed Red Hat Enterprise Virtualization Manager based on the open source oVirt project .

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Oracle Unbreakable Enterprise Kernel Release 5 Update 2

The Unbreakable Enterprise Kernel (UEK) for Oracle Linux provides the latest open source innovations and key optimizations and security to enterprise cloud workloads. It is the Linux kernel that powers Oracle Cloud and Oracle Engineered Systems such as Oracle Exadata Database Machine as well as Oracle Linux on any Intel-64, AMD-64 or ARM hardware.

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The ramdisk ‘tmp’ is full – VMware ESXi on HPE ProLiant

We are using HPE ProLiant servers in our virtual environment to delivering different services to our customers. VMware ESXi has been installed on all servers as Hypervisor. You know that each vendor has customized image that includes VMware ESXi, drivers and management tools. It seems, there is an issue on HPE Agentless Management (AMS) on latest ESXi image.

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What’s WinDocks?

Windocks combines Docker Windows containers with SQL Server database cloning, for a modern, open data delivery solution.Enterprises modernize application development, testing, reporting, and BI, with existing licenses and infrastructure, at a fraction of the cost of alternatives.

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Latest VMware ESXi Patch #1

VMware has released patches for fixing security issues on ESXi. ESXi 6.0, 6.5 and 6.7 are live versions and there is no patch for older version. So if there is any older version in your environment, update the ESXi server immediately to supported versions.

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Microsoft Security Update Guide May 2019

Such as previous months, Microsoft has released “Microsoft Security Update Guide” for Microsoft’s products. The guide is contains details of security vulnerabilities and release patches. the guide is useful to find affected product and applying specific patches.

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Oracle Linux 8 Beta

Oracle Linux is based on Red Hat Enterprise Linux and Red Hat has released Red Hat Enterprise Linux 8 Beta few months ago. Now, Oracle released Oracle Linux 8 beta version with new major features and improvements.