The vulnerability of Xen hypervisors relates to insufficient validation of input data. This allows attackers to gain access to confidential data, compromise its integrity, and cause service failures.

The vulnerability of Xen hypervisors is related to the limited support for linear tables: a page can either point to itself or to another table at the same level. Exploiting this vulnerability could allow an attacker to access confidential data, compromise its integrity, and even cause service...

The vulnerability in web browsers Firefox, Firefox ESR, and the email client Thunderbird, related to a stack overflow error in nrappkit, allows an attacker to access confidential data, compromise its integrity, and cause service interruptions.

The vulnerability in web browsers Firefox, Firefox ESR, and the email client Thunderbird is related to a stack overflow error in the nrappkit library. Exploiting this vulnerability can allow an attacker to gain access to confidential data, compromise its integrity, and cause service interruptions...

The vulnerability of the exif_read_data function in the PHP programming language allows attackers to disclose protected information or cause service failures.

The vulnerability of the exifreaddata function in the PHP programming language lies in the use of memory after it is freed. Exploiting this vulnerability can allow an attacker to disclose protected information or cause service failures...

The vulnerability in the “drivers/media/usb/dvb-usb/technisat-usb2.c” component of the Linux operating system allows a hacker to disclose protected information or cause service failures.

The vulnerability in the drivers/media/usb/dvb-usb/technisat-usb2.c component of the Linux kernel lies in the execution of operations outside of the buffer in memory. Exploiting this vulnerability can allow an attacker to disclose sensitive information or cause system failures...

Full Operational Shutdown—another cybercrime case from the Microsoft Detection and Response Team

Recently, we published our first case report 001: …And Then There Were Six by the Microsoft Detection and Response Team DART. We received significant positive response from our customers and colleagues and our team has been getting inquiries asking for more reports. We are glad to share the DART...

Riding another wave of success for our multi-layered detection and response approach

The corporate endpoint is a constant battle between cybersecurity white hats and criminal attackers. According to one study from the Ponemon Institute, 68% of organizations were victims of an attack on the endpoint in 2019. The risks and costs associated with undetected threats are immeasurable...

The vulnerability of many components of the BlueZ software suite relates to insecure management of privileges, allowing attackers to gain access to confidential data, compromise its integrity, and cause service failures.

The vulnerability of many components of the BlueZ software package is related to the lack of a mechanism for managing privileges. Exploiting this vulnerability allows a remote attacker to gain access to confidential data, compromise its integrity, and cause service failures...

The vulnerability of Intel Graphics Drivers relates to improper handling of access control. This allows attackers to escalate their privileges and cause service failures.

The vulnerability of Intel Graphics Drivers is related to improper handling of access control. Exploiting this vulnerability can allow attackers to enhance their privileges and cause service interruptions...

The vulnerability of the JavaScript script handler in Google Chrome’s V8 engine allows attackers to access sensitive data, compromise its integrity, and cause service failures.

The vulnerability of the JavaScript script handler in Google Chrome’s V8 engine is related to incorrect optimization settings. Exploiting this vulnerability can allow a remote attacker to access sensitive data, compromise its integrity, and cause service failures through a specially crafted HTML...

Vulnerability of the window.global component in the Firefox browser: This component allows a hacker to access confidential data, compromise its integrity, and cause service failures.

The vulnerability of the window.global component in the Firefox browser is related to an error in the Object.getOwnPropertyNameswindow method. This error allows for bypassing the isolated programming environment. Exploiting this vulnerability can enable a remote attacker to gain access to...

The vulnerability of the `mwifiex_pcie_alloc_cmdrsp_buf()` function (drivers/net/wireless/marvell/mwifiex/pcie.c) in the Linux kernel allows a hacker to cause a service failure.

The vulnerability of the mwifiexpciealloccmdrspbuf function drivers/net/wireless/marvell/mwifiex/pcie.c in the Linux kernel involves uncontrolled resource consumption. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

The numerous vulnerabilities in the command-line interface (CLI) of the Cisco TelePresence Collaboration Endpoint (CE) software allow attackers to compromise the integrity of protected information or cause service failures.

The multiple vulnerabilities of the command-line interface CLI of the Cisco TelePresence Collaboration Endpoint CE device’s management software exist due to insufficient validation of input data. Exploitation of these vulnerabilities could allow attackers to compromise the integrity of protected...

The Disgruntled Employee?

When we talk about cyber threat actors one of the terms we use is “Disgruntled Employee”. Everyone knows what that means; someone who is fed up at work, has an axe to grind, feels aggrieved etc. There are sometimes other factors though, ones that aren’t as obvious… The symptoms and effects I was...

DDoS Attacks Target Amazon, SoftLayer and Telecom Infrastructure

The last 30 days has seen a renewed increase in distributed denial-of-service DDoS activity, according to researchers, who said that they have observed a number of criminal campaigns mounting TCP reflection DDoS attacks against corporations. Researchers at Radware said that the list of victims...

Vulnerability of the Server component: The Optimizer component of the MySQL Server database management system, which allows a hacker to cause a service failure.

The vulnerability of the MySQL Server component of the database management system involves errors in resource release. Exploiting this vulnerability can allow a malicious actor to cause service interruptions using the MySQL protocol...

The vulnerability of the HyperLogLog algorithm in the resident database management system for NoSQL Redis allows attackers to compromise data integrity, gain unauthorized access to protected information, and cause service failures.

The vulnerability of the HyperLogLog algorithm in the resident database management system for NoSQL Redis stems from a flaw in the HyperLogLog data structure when the SETRANGE command is executed. This flaw allows up to 3 bytes of information to be inserted beyond the buffer memory limit...

The vulnerability of the FasterXML function in the Jackson-Databind Java library for JSON file grammar analysis allows attackers to compromise data integrity, gain access to confidential information, and cause service failures.

The vulnerability of the FasterXML function in the Jackson-Databind Java library for JSON file grammar analysis is related to the blocking of the polymorphic deserialization in the jboss-common-core class. Exploiting this vulnerability could allow an attacker to compromise data integrity, gain...

A week in security (June 24 – 30)

Last week on Malwarebytes Labs, we peeled back the mystery on an elusive malware campaign that relied on blank JavaScript injections, detailed for readers our latest telemetry on the tricky GreenFlash Sundown exploit, and looked at one of the top campaigns directing traffic toward scareware pages...

The Infrastructure Mess Causing Countless Internet Outages

You may not have heard of the Border Gateway Protocol, but you definitely know when it goes wrong...

What’s Behind the Wolters Kluwer Tax Outage?

Early in the afternoon on Friday, May, 3, I asked a friend to relay a message to his security contact at CCH, the cloud-based tax division of the global information services firm Wolters Kluwer in the Netherlands. The message was that the same file directories containing new versions of CCH's...