kernel: Multiple memory leaks in the iwl_pcie_ctxt_info_gen3_init() function in drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c allows for a DoS

A flaw was found in the way the Intel Wireless driver in the Linux kernel handled resource cleanup during Gen 3 device initialization. This flaw allows an attacker with the ability to restrict access to DMA coherent memory on device initialization, to crash the system...

SAS@Home Virtual Summit Showcases New Threat Intel, Industry Changes

As the COVID-19 pandemic continues to force in-person cybersecurity event cancellations, Kaspersky is forging ahead with a virtual security summit, SAS@home. Topics on the agenda include threat intel on advanced persistent threats APTs, new vulnerability research, and topics related to a...

The vulnerability of the ide_dma_cb() function in QEMU’s hardware emulation software lies in its insufficient checking of unusual or exceptional states. This allows a malicious actor to trigger a service failure.

The vulnerability of the idedmacb function in the hardware emulation for various QEMU platforms is related to a bug in the host system, triggered through the special SCSIIOCTLSENDCOMMAND. This bug requires that the size of successfully transferred DMA operations be a multiple of 512 equal to the...

Lenovo, HP, Dell Peripherals Face Unpatched Firmware Bugs

Fresh firmware vulnerabilities in Wi-Fi adapters, USB hubs, trackpads and cameras are putting millions of peripheral devices in danger of a range of cyberattacks, according to research from Eclypsium. TouchPad and TrackPoint firmware in Lenovo Laptops, HP Wide Vision FHD camera firmware in HP...

Enterprise laptops vulnerable to critical direct memory access attack

By Sudais Asif In a direct memory access DMA attack an attacker can plug in a malicious device into one’s computer and extract highly confidential information. This is a post from HackRead.com Read the original post: Enterprise laptops vulnerable to critical direct memory access attack...

Dell, HP Memory-Access Bugs Open Attacker Path to Kernel Privileges

Vulnerabilities in Dell and HP laptops could allow an attacker to access information and gain kernel privileges via the devices’ Direct Memory Access DMA capability. DMA is a processing-efficiency approach for peripherals such as PCI cards or network interface cards that, as the name suggests,...

Xen Input Validation Error Vulnerability

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. An input validation error vulnerability exis...

DEBIAN-CVE-2019-19579

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device and assignable-add is not used, because of an incomplete fix for CVE-2019-18424. XSA-302 relies on the use of libxl's...

UBUNTU-CVE-2019-19579

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device and assignable-add is not used, because of an incomplete fix for CVE-2019-18424. XSA-302 relies on the use of libxl's...

DEBIAN-CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

ALPINE-CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

UBUNTU-CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

PT-2019-4887 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen versions prior to 4.13 Description: An issue in Xen allows attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt...

DEBIAN-CVE-2019-17075

An issue was discovered in writetptentry in drivers/infiniband/hw/cxgb4/mem.c in the Linux kernel through 5.3.2. The cxgb4 driver is directly calling dmamapsingle a DMA function from a stack variable. This could allow an attacker to trigger a Denial of Service, exploitable if this driver is used ...

PT-2019-3613 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel versions through 5.3.2 Description: An issue was discovered in the write tpt entry function in drivers/infiniband/hw/cxgb4/mem.c. The cxgb4 driver is directly calling dma map single a DMA function from a stack variable. This coul...

Another Side Channel in Intel Chips

Not that serious, but interesting: In late 2011, Intel introduced a performance enhancement to its line of server processors that allowed network cards and other peripherals to connect directly to a CPU's last-level cache, rather than following the standard and significantly longer path through t...

Intel CPUs Vulnerable to Sensitive Data Leakage in NetCAT Attack

Researchers have identified a new side-channel attack impacting all modern Intel server processors made since 2012. The vulnerability could allow bad actors to sniff out encrypted passwords as they are being typed into a secure shell session SSH; but, luckily, such an attack would be difficult to...

The vulnerability of the xudc_ep_enable handler implementation in Linux kernel allows a hacker to write data into the memory space of the operating system.

The vulnerability in the implementation of the xudcepenable handler of the loaded module in the drivers/usb/gadget/udc/udc-xilinx.ko kernel of the Linux operating system arises due to an out-of-bounds array access. Exploiting this vulnerability allows an attacker to write data into an unauthorize...

New Flaws Re-Enable DMA Attacks On Wide Range of Modern Computers

Security researchers have discovered a new class of security vulnerabilities that impacts all major operating systems, including Microsoft Windows, Apple macOS, Linux, and FreeBSD, allowing attackers to bypass protection mechanisms introduced to defend against DMA attacks. Known for years, Direct...

CVE-2018-15383 Cisco Adaptive Security Appliance Direct Memory Access Denial of Service Vulnerability

A vulnerability in the cryptographic hardware accelerator driver of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a temporary denial of service DoS...