Important: kernel-livepatch-5.10.176-157.645

Issue Overview: A use-after-free vulnerability was found in nfs42sscopen in fs/nfs/nfs4file.c in the Linux kernel. This flaw allows an attacker to conduct a remote denial of service. CVE-2022-4379 In the Linux kernel through 6.3.1, a use-after-free in Netfilter nftables when processing batch...

CVE-2023-25590 Local Privilege Escalation in ClearPass OnGuard Linux Agent

A vulnerability in the ClearPass OnGuard Linux agent could allow malicious users on a Linux instance to elevate their user privileges to those of a higher role. A successful exploit allows malicious users to execute arbitrary code with root level privileges on the Linux instance...

New Mirai Botnet Variant 'V3G4' Exploiting 13 Flaws to Target Linux and IoT Devices

A new variant of the notorious Mirai botnet has been found leveraging several security vulnerabilities to propagate itself to Linux and IoT devices. Observed during the second half of 2022, the new version has been dubbed V3G4 by Palo Alto Networks Unit 42, which identified three different...

PT-2022-37649 · Nvidia · Nvidia Windows Gpu Display Driver +1

Name of the Vulnerable Software and Affected Versions: NVIDIA GPU Display Driver for Linux versions prior to the fixed version NVIDIA GPU Display Driver for Windows versions prior to the fixed version Description: The issue is related to improper input validation and null-pointer dereferences in...

CVE-2022-33740

Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365,...

Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-5368-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5368-1 advisory. It was discovered that the BPF verifier in the Linux kernel did not properly restrict pointer types in certain situations. A local attacker could use thi...

USN-5319-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, ilinux-lts-xenial, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano Giuffrida discovered that hardware mitigations added by Intel to their processors to address Spectre-BTI were insufficient. A local attacker could potentially use this to expose sensitive information...

The vulnerability of the libxcb library in operating systems such as ALT Linux, ROSA Linux, and MSVSphere allows attackers to cause service failures.

The vulnerability of the libxcb library in ALT Linux, ROSA Linux, and MSVSphere operating systems is related to the lack of checks for the correctness of input parameters for the export function xcbgetpropertyvalueend. Exploiting this vulnerability can allow attackers to cause failures in...

New Bugs Could Let Hackers Bypass Spectre Attack Mitigations On Linux Systems

Cybersecurity researchers on Monday disclosed two new vulnerabilities in Linux-based operating systems that, if successfully exploited, could let attackers circumvent mitigations for speculative attacks such as Spectre and obtain sensitive information from kernel memory. Discovered by Piotr Krysi...

FreakOut! Ongoing Botnet Attack Exploiting Recent Linux Vulnerabilities

An ongoing malware campaign has been found exploiting recently disclosed vulnerabilities in network-attached storage NAS devices running on Linux systems to co-opt the machines into an IRC botnet for launching distributed denial-of-service DDoS attacks and mining Monero cryptocurrency. The attack...

SAD DNS — New Flaws Re-Enable DNS Cache Poisoning Attacks

A group of academics from the University of California and Tsinghua University has uncovered a series of critical security flaws that could lead to a revival of DNS cache poisoning attacks. Dubbed "SAD DNS attack" short for Side-channel AttackeD DNS, the technique makes it possible for a maliciou...

An overview of targeted attacks and APTs on Linux

Perhaps unsurprisingly, a lot has been written about targeted attacks on Windows systems. Windows is, due to its popularity, the platform for which we discover most APT attack tools. At the same time, theres a widely held opinion that Linux is a secure-by-default operating system that isnt...

Exploit for Off-by-one Error in Sudo_Project Sudo

PoC exploit for CVE-2021-3156, Exploit module/toolkit targeting Linux, or It is an offensive tool for Linux. The repository contains various tools and scripts for exploiting vulnerabilities in Linux systems. The tools include: evilELF: a tool for exploiting ELF-related vulnerabilities evilHEAP: a...

The vulnerability of the mmget_not_zero()/get_task_mm() components in the Linux operating system allows a hacker to disclose sensitive information or cause system failures.

The vulnerability of the mmgetnotzero/gettaskmm components in the Linux operating system stems from synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to disclose sensitive information or cause service failures...

USN-4135-2 linux, linux-aws, linux-azure, linux-lts-trusty, linux-lts-xenial vulnerabilities

Peter Pi discovered a buffer overflow in the virtio network backend vhostnet implementation in the Linux kernel. An attacker in a guest may be able to use this to cause a denial of service host OS crash or possibly execute arbitrary code in the host OS. CVE-2019-14835 It was discovered that the...

USN-3980-2 linux-hwe, linux-azure vulnerabilities

USN-3980-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.10. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 18.10 for Ubuntu 18.04 LTS. Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andre...

Critical RCE Flaw in Linux APT Allows Remote Attackers to Hack Systems

Just in time… Some cybersecurity experts this week arguing over Twitter in favor of not using HTTPS and suggesting software developers to only rely on signature-based package verification, just because APT on Linux also does the same. Ironically, a security researcher just today revealed details ...

Researchers Blame ‘Monolithic’ Linux Code Base for Critical Vulnerabilities

In an exhaustive study of critical Linux vulnerabilities, a team of academic and government-backed researchers claim to have proven that almost all flaws could be mitigated to less than critical severity – and that 40 percent could be completely eliminated – with an OS design based on a verified...

Ubuntu 17.10 : linux vulnerabilities (USN-3617-1)

It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2017-0861 It was discovered that the KVM...

MGASA-2018-0126 Updated kernel-tmb packages fix security vulnerabilities

This kernel-tmb update is based on the upstream 4.14.18 and adds some support for mitigating Spectre, variant 1 CVE-2017-5753 and as it is built with the retpoline-aware gcc-5.5.0-1.mga6, it now provides full retpoline mitigation for Spectre, variant 2 CVE-2017-5715. The BPF interpreter has been...