New Critical Exim Flaw Exposes Email Servers to Remote Attacks — Patch Released

A critical security vulnerability has been discovered and fixed in the popular open-source Exim email server software, which could allow a remote attacker to simply crash or potentially execute malicious code on targeted servers. Exim maintainers today released an urgent security update—Exim...

Boosting Your Linux & Docker Security with CB LiveOps

Today we’re excited to announce Linux support for CB LiveOps, Carbon Black’s real-time endpoint query & remediation solution that helps security teams audit and change the state of their systems. This release expands the product’s footprint to cover all major operating systems, including Amazon...

USN-4017-1: Linux kernel vulnerabilities

Jonathan Looney discovered that the TCP retransmission queue implementation in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment SACK sequences. A remote attacker could use this to cause a denial of service. CVE-2019-11478 Jonathan Looney discovered that an...

Snapd Flaw Lets Attackers Gain Root Access On Linux Systems

Ubuntu and some other Linux distributions suffer from a severe privilege escalation vulnerability that could allow a local attacker or a malicious program to obtain root privileges and total control over the targeted system. Dubbed "DirtySock" and identified as CVE-2019-7304, the vulnerability wa...

Arbitrary Code Execution

kernel is vulnerable to arbitrary code execution attacks. The vulnerability exists as Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 committed on April 14, 2015. This kernel vulnerability was fixed in...

systemd-journald Memory Corruption / Information Leak Vulnerability

This is a thorough analysis of how Qualys approached exploiting three vulnerabilities in systemd-journald. Although they have not released formal exploits yet, they detail in here is useful in understanding the flaws. Qualys Security Advisory System Down: A systemd-journald exploit...

New Systemd Privilege Escalation Flaws Affect Most Linux Distributions

Security researchers have discovered three vulnerabilities in Systemd, a popular init system and service manager for most Linux operating systems, that could allow unprivileged local attackers or malicious programs to gain root access on the targeted systems. The vulnerabilities, assigned as...

New Systemd Privilege Escalation Flaws Affect Most Linux Distributions

Security researchers have discovered three vulnerabilities in Systemd, a popular init system and service manager for most Linux operating systems, that could allow unprivileged local attackers or malicious programs to gain root access on the targeted systems. The vulnerabilities, assigned as...

Veeam Agent for Linux - veeamsnap and blksnap Extended Linux Distribution Support

This article provides supplementary information regarding the compatibility of the veeamsnap and blksnap kernel modules with various Linux distributions and kernel versions. It specifically addresses distributions and versions that are not explicitly listed in the System Requirements for Veeam...

New Privilege Escalation Flaw Affects Most Linux Distributions

An Indian security researcher has discovered a highly critical flaw in X.Org Server package that impacts OpenBSD and most Linux distributions, including Debian, Ubuntu, CentOS, Red Hat, and Fedora. Xorg X server is a popular open-source implementation of the X11 system display server that offers ...

New Privilege Escalation Flaw Affects Most Linux Distributions

An Indian security researcher has discovered a highly critical flaw in X.Org Server package that impacts OpenBSD and most Linux distributions, including Debian, Ubuntu, CentOS, Red Hat, and Fedora. Xorg X server is a popular open-source implementation of the X11 system display server that offers ...

Network-Attacker - WiFi Stress Testing Beacon Flooding & Deauthentication Attack

network-attacker V0.1 is a Wifi Stress Testing Bash Script Program Based on Mdk3 Beacon Flooding & Deauthentication Attack Created To Help Beginners And even Professionals For a eacon Flooding Or Deauthentication Attack On Networks Installation sudo apt-get install git sudo git clone...

Critical Flaws in Ghostscript Could Leave Many Systems at Risk of Hacking

Google Project Zero's security researcher has discovered a critical remote code execution RCE vulnerability in Ghostscript—an open source interpreter for Adobe Systems' PostScript and PDF page description languages. Written entirely in C, Ghostscript is a package of software that runs on differen...

OpenVAS Knowledge Base become smaller

At 23 January Jan Oliver Wagner, leader of OpenVAS project and Greenbone CEO, sent an email with a subject "Attic Cleanup". In this message, he mentioned, that some NASL plugins will be excluded from the public NVT / Greenbone Community Feed GCF soon. On the one hand it seems logical. These old...

Update Samba Servers Immediately to Patch Password Reset and DoS Vulnerabilities

Samba maintainers have just released new versions of their networking software to patch two critical vulnerabilities that could allow unprivileged remote attackers to launch DoS attacks against servers and change any other users' passwords, including admin's. Samba is open-source software...

glibc - getcwd() Local Privilege Escalation Exploit

Exploit for linux platform in category local exploits / This software is provided by the copyright owner "as is" and any expressed or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall...

glibc getcwd() Local Privilege Escalation

/ This software is provided by the copyright owner "as is" and any expressed or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the copyright owner be liable for any direct, indirec...

Flaw Found In Dirty COW Patch

A flaw in the original patch for the notorious Dirty COW vulnerability could allow an adversary to run local code on affected systems and exploit a race condition to perform a privilege escalation attack. The flaw in the Dirty COW patch CVE-2016-5195, released in October 2016, was identified by...

IcedTea: Multiple vulnerabilities

Background IcedTea’s aim is to provide OpenJDK in a form suitable for easy configuration, compilation and distribution with the primary goal of allowing inclusion in GNU/Linux distributions. Description Multiple vulnerabilities have been discovered in IcedTea. Please review the referenced CVE...

Yet Another Linux Kernel Privilege-Escalation Bug Discovered

Security researchers have discovered a new privilege-escalation vulnerability in Linux kernel that could allow a local attacker to execute code on the affected systems with elevated privileges. Discovered by Venustech ADLab Active-Defense Lab researchers, the Linux kernel vulnerability...