CISO Forum 2022: the first major Russian security conference in the New Reality

Hello everyone! After a two-year break, I took part in Moscow CISO Forum 2022 with a small talk "Malicious open source: the cost of using someone elses code". Alternative video link for Russia: CISO Forum is the first major Russian conference since the beginning of The New Reality of Information...

UBUNTU-CVE-2022-1286

heap-buffer-overflow in mrbvmexec in mruby/mruby in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited...

DEBIAN-CVE-2022-1201

NULL Pointer Dereference in mrbvmexec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system...

PT-2022-13708 · Mruby +1 · Mruby +1

Name of the Vulnerable Software and Affected Versions: mruby versions prior to 3.2 Description: The issue is related to a NULL Pointer Dereference in mrb vm exec with super, which can cause the mruby interpreter to crash. This affects the availability of the system. Recommendations: For versions...

The vulnerability of the Core component in Oracle VM VirtualBox, which allows a hacker to exploit it to disclose protected information

The vulnerability of the Core component in Oracle VM VirtualBox exists due to insufficient validation of input data. Exploiting this vulnerability can allow an attacker to disclose protected information...

Virtuozzo Hybrid Infrastructure 5.4 Update 1 (5.4.1-59)

This update provides new features, as well as stability fixes for the compute and core storage services. Vulnerability id: VSTOR-62742 A VM creation fails with the error 'Unable to update the attachment.' Vulnerability id: VSTOR-65824 Some charts in the admin panel or Grafana dashboard may be...

UBUNTU-CVE-2022-1106

use after free in mrbvmexec in GitHub repository mruby/mruby prior to 3.2...

DEBIAN-CVE-2022-1071

User after free in mrbvmexec in GitHub repository mruby/mruby prior to 3.2...

mruby 资源管理错误漏洞

mruby is a lightweight implementation of the Ruby language. A security vulnerability exists in mruby 3.1 and earlier, which stems from post-release reuse in mrbvmexec. No details of the vulnerability are provided at this time...

use after free in mrb_vm_exec

While fuzzing mruby I found a use after free in mruby compiled with ASAn. Proof of Concept uaf5.rb rb...

CVE-2021-20257

An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits tx descriptors in processtxdesc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial o...

The VM Lifecycle: How We Got Here, and Where We’re Going

Written in collaboration with Joel Ashman The immutable truth that vulnerability management VM programs have long adhered to is that successful programs should follow a consistent lifecycle. This concept is simply a series of phases or steps that have a logical sequence and are repeated according...

OPENSUSE-SU-2022:0873-1 Security update for java-1_8_0-openjdk

This update for java-180-openjdk fixes the following issues: Update to version jdk8u322 icedtea-3.22.0 Including the following security fixes: - CVE-2022-21248, bsc1194926: Enhance cross VM serialization - CVE-2022-21283, bsc1194937: Better String matching - CVE-2022-21293, bsc1194935: Improve...

SUSE-SU-2022:0871-1 Security update for java-1_8_0-openjdk

This update for java-180-openjdk fixes the following issues: Update to version jdk8u322 icedtea-3.22.0 Including the following security fixes: - CVE-2022-21248, bsc1194926: Enhance cross VM serialization - CVE-2022-21283, bsc1194937: Better String matching - CVE-2022-21293, bsc1194935: Improve...

Red Team lab automation

It’s not uncommon for red teamers to regularly tear down and rebuild their test labs, I know I do on a sometimes daily basis. It keeps things fresh and manageable, and now, using Infrastructure as Code IaC, we can create a consistent environment to test tools and techniques in. If we break...

Virtuozzo Hybrid Infrastructure 5.0 Update 1 (5.0.1-42)

This update provides support for more guest operating systems, as well as bug fixes and improvements. Vulnerability id: VSTOR-50067 Fixed the false-positive alert "Swap space is used." Vulnerability id: VSTOR-51196 Fixed the false-positive alert "Disk may run out of space" that appears for a cach...

GSD-2022-1000491 powerpc/fixmap: Fix VM debug warning on unmap

powerpc/fixmap: Fix VM debug warning on unmap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.16.10 by commit...

GSD-2022-1000360 powerpc/fixmap: Fix VM debug warning on unmap

powerpc/fixmap: Fix VM debug warning on unmap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.101 by commit...

Security Bulletin: Multiple vulnerabilities may affect IBM® SDK, Java™ Technology Edition

Summary This bulletin covers all applicable Java SE CVEs published by Oracle as part of their January 2022 Critical Patch Update, except for CVE-2022-21299 which will be covered by a future bulletin. For more information please refer to Oracle's January 2022 CPU Advisory and the X-Force database...

DEBIAN-CVE-2021-4093

A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State SEV-ES. A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host kernel via a malicious VMGEXIT for a string I/O instruction for example, outs or ins using the exit...