Kali Linux 2.0 Released — Download Most Powerful Penetration Testing Platform

Offensive Security, the creators of Swiss army knife for Security researchers, Penetration testers and Hackers have finally released the much awaited and most powerful version of Kali Linux 2.0. Kali Linux 2.0 Codename ‘Kali Sana’, an open-source penetration testing platform brings hundreds of...

mbedTLS/PolarSSL -- multiple vulnerabilities

ARM Limited reports: In order to strengthen the minimum requirements for connections and to protect against the Logjam attack, the minimum size of Diffie-Hellman parameters accepted by the client has been increased to 1024 bits. In addition the default size for the Diffie-Hellman parameters on th...

Use after free in QEMU/Xen block unplug protocol

ISSUE DESCRIPTION When unplugging an emulated block device the device was not fully unplugged, meaning a second unplug attempt would attempt to unplug the device a second time using a previously freed pointer. IMPACT An HVM guest which has access to an emulated IDE disk device may be able to...

Xen Patches VM Escape Flaw

The Xen Project has patched a serious vulnerability that could allow an attacker in a guest virtual machine to escape and gain the ability to run arbitrary code on the host machine. The vulnerability is in the QEMU open source machine emulator that ships as part of the Xen hypervisor. The problem...

QEMU heap overflow flaw while processing certain ATAPI commands.

ISSUE DESCRIPTION The QEMU security team has predisclosed the following advisory: A heap overflow flaw was found in the way QEMU's IDE subsystem handled I/O buffer access while processing certain ATAPI commands. A privileged guest user in a guest with CDROM drive enabled could potentially use thi...

Low: Red Hat Enhancement Advisory: elfutils bug fix and enhancement update

Updated elfutils packages that fix several bugs and add various enhancements are now available for Red Hat Enterprise Linux 6. The elfutils packages contain a number of utility programs and libraries related to the creation and maintenance of executable code. The elfutils packages have been...

FreeBSD : xen-kernel -- arm: vgic: incorrect rate limiting of guest triggered logging (912cb7f7-27df-11e5-a4a5-002590263bf5)

The Xen Project reports : On ARM systems the code which deals with virtualizing the GIC distributor would, under various circumstances, log messages on a guest accessible code path without appropriate rate limiting. A malicious guest could cause repeated logging to the hypervisor console, leading...

FreeBSD : xen-kernel -- arm: vgic-v2: GICD_SGIR is not properly emulated (785c86b1-27d6-11e5-a4a5-002590263bf5)

The Xen Project reports : When decoding a guest write to a specific register in the virtual interrupt controller Xen would treat an invalid value as a critical error and crash the host. By writing an invalid value to the GICD.SGIR register a guest can crash the host, resulting in a Denial of...

Micro:bit — A Pocket-sized Programmable Computer

The BBC has unveiled the final design of the Micro:bit — a pocket-sized computer board designed to lure U.K. school children to embedded electronics. The Micro:bit is essentially a codeable computer that lets kids get creative with technology. It measures 5cm by 4cm and will be available in...

xl command line config handling stack overflow

ISSUE DESCRIPTION The xl command line utility mishandles long configuration values when passed as command line arguments, with a buffer overrun. VULNERABLE SYSTEMS Systems built on top of xl which pass laundered or checked but otherwise untrusted configuration values onto xl's command line, witho...

vulnerability in the iret hypercall handler

ISSUE DESCRIPTION A buggy loop in Xen's compatiret function iterates the wrong way around a 32-bit index. Any 32-bit PV guest kernel can trigger this vulnerability by attempting a hypercalliret with EFLAGS.VM set. Given the use of get/putuser, and that the virtual addresses in question are...

Potential unintended writes to host MSI message data field via qemu

ISSUE DESCRIPTION Logic is in place to avoid writes to certain host config space fields when the guest must nevertheless be able to access their virtual counterparts. A bug in how this logic deals with accesses spanning multiple fields allows the guest to write to the host MSI message data field...

CHIP — The World's First $9 Computer

Wait! What? A $9 computer? This is something magical. A Californian startup lead by Dave Rauchwerk is currently seeking crowdfunding on Kickstarter to create a computer that will cost as much as $9 or £6. The new microcomputer, dubbed CHIP, is a tiny, Linux-based, super-cheap computer that's...

Fedora 22 : v8-3.14.5.10-18.fc22 (2015-6890)

Fix for ARM-only CVE-2014-3152 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. %NASLMINLEVEL 70300 C...

Fedora 21 : v8-3.14.5.10-18.fc21 (2015-6845)

Fix for ARM-only CVE-2014-3152 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. %NASLMINLEVEL 70300 C...

Linux ASLR mmap weakness: Reducing entropy by half

A bug in Linux ASLR implementation has been found. The issue is that the mmap base address for processes is not properly randomized on some architectures due to an improper bit-mask manipulation. Affected systems have reduced the mmap area entropy of the processes by half. The number of possible...

Vulnerabilities of the Debian GNU/Linux operating system that allow a remote attacker to compromise the accessibility of protected information

Multiple vulnerabilities exist in the kernel-patch-2.4.27-arm operating system of the Debian GNU/Linux distribution. Exploitation of these vulnerabilities may lead to a violation of the accessibility of protected information. These vulnerabilities can be exploited remotely...

Vulnerabilities in the Debian GNU/Linux operating system that allow a remote attacker to compromise the confidentiality of protected information

The Linux-headers-2.6.18-4-all-arm package of the Debian GNU/Linux operating system has multiple vulnerabilities. Exploitation of these vulnerabilities may lead to a violation of the confidentiality of protected information. These vulnerabilities can be exploited remotely...

BackBox Linux 4.2 - Ubuntu-based Linux Distribution Penetration Test and Security Assessment

BackBox is a Linux distribution based on Ubuntu. It has been developed to perform penetration tests and security assessments. Designed to be fast, easy to use and provide a minimal yet complete desktop environment, thanks to its own software repositories, always being updated to the latest stable...

Information leak through XEN_DOMCTL_gettscinfo

ISSUE DESCRIPTION The handler for XENDOMCTLgettscinfo failed to initialize a padding field subsequently copied to guest memory. A similar bug existed in XENSYSCTLgetdomaininfolist, which is addressed by the patches provided here even though that operation was declared by XSA-77 not to provide...