USN-3443-2: Linux kernel (HWE) vulnerabilities

USN-3443-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. It was discovered that on the PowerPC architecture, the kernel did not properly sanitize the...

USN-3443-2 linux-hwe vulnerabilities

USN-3443-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. It was discovered that on the PowerPC architecture, the kernel did not properly sanitize the...

USN-3443-1: Linux kernel vulnerabilities

It was discovered that on the PowerPC architecture, the kernel did not properly sanitize the signal stack when handling sigreturn. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2017-1000255 Andrey Konovalov discovered that a...

CVE-2017-1000255

A flaw was found in the Linux kernel's handling of signal frame on PowerPC systems. A malicious local user process could craft a signal frame allowing an attacker to corrupt memory...

UBUNTU-CVE-2017-1000255

On Linux running on PowerPC hardware Power8 or later a user process can craft a signal frame and then do a sigreturn so that the kernel will take an exception interrupt, and use the r1 value from the signal frame as the kernel stack pointer. As part of the exception entry the content of the signa...

CVE-2017-1000255

On Linux running on PowerPC hardware Power8 or later a user process can craft a signal frame and then do a sigreturn so that the kernel will take an exception interrupt, and use the r1 value from the signal frame as the kernel stack pointer. As part of the exception entry the content of the signa...

kernel: stack buffer overflow in the native Bluetooth stack

A stack buffer overflow flaw was found in the way the Bluetooth subsystem of the Linux kernel processed pending L2CAP configuration responses from a client. On systems with the stack protection feature enabled in the kernel CONFIGCCSTACKPROTECTOR=y, which is enabled on all architectures other tha...

kernel: stack buffer overflow in the native Bluetooth stack

A stack buffer overflow flaw was found in the way the Bluetooth subsystem of the Linux kernel processed pending L2CAP configuration responses from a client. On systems with the stack protection feature enabled in the kernel CONFIGCCSTACKPROTECTOR=y, which is enabled on all architectures other tha...

New Linux Malware Exploits SambaCry Flaw to Silently Backdoor NAS Devices

Remember SambaCry? Almost two months ago, we reported about a 7-year-old critical remote code execution vulnerability in Samba networking software, allowing a hacker to remotely take full control of a vulnerable Linux and Unix machines. We dubbed the vulnerability as SambaCry, because of its...

Linux Meterpreter, Reverse HTTP Inline

Run the Meterpreter / Mettle server payload stageless This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework Module generated by tools/modules/generatemettlepayloads.rb module MetasploitModule CachedSize = 1213932 include...

Linux Meterpreter, Reverse HTTPS Inline

Run the Meterpreter / Mettle server payload stageless This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework Module generated by tools/modules/generatemettlepayloads.rb module MetasploitModule CachedSize = 1213932 include...

Linux Meterpreter, Reverse TCP Inline

Run the Meterpreter / Mettle server payload stageless This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework Module generated by tools/modules/generatemettlepayloads.rb module MetasploitModule CachedSize = 1213932 include...

PyREBox, a Python Scriptable Reverse Engineering Sandbox

This post was authored by Xabier Ugarte PedreroIn Talos, we are continuously trying to improve our research and threat intelligence capabilities. As a consequence, we not only leverage standard tools for analysis, but we also focus our efforts on innovation, developing our own technology to...

openSUSE Security Update : the Linux Kernel (openSUSE-2017-734) (Stack Clash)

The openSUSE Leap 42.2 kernel was updated to 4.4.73 to receive security and bugfixes. The following security bugs were fixed : - CVE-2017-1000364: An issue was discovered in the size of the stack guard page on Linux, specifically a 4k stack guard page is not sufficiently large and can be 'jumped'...

Security update for the Linux Kernel (important)

The openSUSE Leap 42.2 kernel was updated to 4.4.73 to receive security and bugfixes. The following security bugs were fixed: - CVE-2017-1000364: An issue was discovered in the size of the stack guard page on Linux, specifically a 4k stack guard page is not sufficiently large and can be "jumped"...

openSUSE: Security Advisory for kernel (openSUSE-SU-2017:1685-1)

The remote host is missing an update for the Copyright C 2017 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

BSA-2017-336

Security Advisory ID : BSA-2017-336 Component : zlib Revision : 2.0: Interim There was a small optimization for PowerPCs to pre-increment a pointer when accessing a word, instead of post-incrementing. This required prefacing the loop with a decrement of the pointer, possibly pointing before the...

Oracle Linux 7 : kernel (ELSA-2017-1308-1)

Description of changes: - 3.10.0-514.21.1.0.1.el7.OL7 - ipc ipc/sem.c: bugfix for semctl,,GETZCNT Manfred Spraul orabug 22552377 - Oracle Linux certificates Alexey Petrenko - Oracle Linux RHCK Module Signing Key was compiled into kernel olkmodsigningkey.x509alexey.petrenko at oracle.com - Update...

kernel security, bug fix, and enhancement update

3.10.0-514.21.1.0.1.el7.OL7 - ipc ipc/sem.c: bugfix for semctl,,GETZCNT Manfred Spraul orabug 22552377 - Oracle Linux certificates Alexey Petrenko - Oracle Linux RHCK Module Signing Key was compiled into kernel [email protected] - Update x509.genkey bug 24817676...

EulerOS 2.0 SP1 : kernel (EulerOS-SA-2016-1026)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - It was found that the Linux kernel KVM subsystem's sysenter instruction emulation was not sufficient. An unprivileged guest user could use this...