Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-3931-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3931-1 advisory. M. Vefa Bicakci and Andy Lutomirski discovered that the kernel did not properly set up all arguments to an error handler callback used when running as a...

Ubuntu 14.04 LTS / 16.04 LTS : Linux kernel (HWE) vulnerabilities (USN-3931-2)

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3931-2 advisory. USN-3931-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux...

USN-3931-2 linux-hwe, linux-aws-hwe, linux-azure, linux-gcp, linux-oracle vulnerabilities

USN-3931-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS and for the Linux Azure kernel for Ubuntu 14.04 LTS. M. Vefa Bicakci and Andy Lutomirsk...

Security update for the Linux Kernel (important)

openSUSE Security Update: Security update for the Linux Kernel Announcement ID: openSUSE-SU-2019:1085-1 Rating: important References: 1012382 1020413 1065600 1070767 1075697 1082943 1087092 1090435 1102959 1103429 1106929 1109137 1109248 1119019 1119843 1120691 1120902 1121713 1121805 1124235...

From 0 to ReverseShell: router vulnerabilities range the Dvar practice-vulnerability warning-the black bar safety net

The Dvar is a simulation of the arm architecture of the router vulnerability the shooting range, this article will introduce how to get a reverse shell, the intermediate will contain the environment to build, bugs to locate and use, as well as this practical experience. 1. Knowledge base This...

openSUSE Security Update : xen (openSUSE-2019-1046) (Foreshadow)

This update for xen fixes the following issues : Update to Xen 4.10.2 bug fix release bsc1027519. Security vulnerabilities fixed : - CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, m...

openSUSE Security Update : the Linux Kernel (openSUSE-2019-974)

The openSUSE Leap 15.0 kernel was updated to 4.12.14-lp150.12.28.1 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-18281: The mremap syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate removes entries from the...

The vulnerabilities of Intel and ARM processors, related to the use of speculative read operations on system registers, allow attackers to exploit these vulnerabilities to disclose protected information.

The vulnerabilities of Intel and ARM processors are related to the use of speculative read operations for system registers. Exploiting these vulnerabilities can allow attackers to disclose system parameters through a specially crafted application...

Security update for freerdp (important)

openSUSE Security Update: Security update for freerdp Announcement ID: openSUSE-SU-2019:0325-1 Rating: important References: 1085416 1087240 1103557 1104918 1112028 1116708 1117963 1117964 1117965 1117966 1117967 1120507 Cross-References: CVE-2018-0886 CVE-2018-1000852 CVE-2018-8784 CVE-2018-8785...

x86: PV kernel context switch corruption

ISSUE DESCRIPTION On hardware supporting the fsgsbase feature, 64bit PV guests can set and clear the applicable control bit in its virtualised %cr4, but the feature remains fully active in hardware. Therefore, the associated instructions are actually usable. Linux, which does not currently suppor...

grant table transfer issues on large hosts

ISSUE DESCRIPTION When the code processing grant table transfer requests finds a page with an address too large to be represented in the interface with the guest, it allocates a replacement page and copies page contents. However, the code doing so fails to set the newly allocated page's accountin...

Security update for the Linux Kernel (important)

openSUSE Security Update: Security update for the Linux Kernel Announcement ID: openSUSE-SU-2019:0274-1 Rating: important References: 1012382 1020413 1031492 1042286 1050549 1078355 1086095 1086652 1099810 1103097 1105428 1106061 1106929 1116345 1117108 1117645 1117744 1120017 1120758 1120902...

Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow

Alcatel-Lucent Nokia GPON I-240W-Q - Buffer Overflow !/usr/bin/python3 import argparse import requests import urllib.parse import binascii import re def runtarget: """ Execute exploitation """ We're using CVE-2018-10561 and/or it's extension in order to exploit this Authenticated RCE in usbForm...

How to Attack and Defend a Prosthetic Arm

The IoT world has long since grown beyond the now-ubiquitous smartwatches, smartphones, smart coffee machines, cars capable of sending tweets and Facebook posts and other stuff like fridges that send spam. Today's IoT world now boasts state-of-the-art solutions that quite literally help people...

The vulnerabilities of Intel and ARM processors stem from the use of speculative execution and memory reading before returning addresses of previous write operations to memory. This allows attackers to exploit these vulnerabilities to disclose protected information.

The vulnerabilities of Intel and ARM processors are related to the use of speculative execution and memory reading before returning addresses of previous write operations to memory. Exploiting these vulnerabilities can allow attackers to disclose sensitive information through specially crafted...

CVE-2019-9075

An issue was discovered in the Binary File Descriptor BFD library aka libbfd, as distributed in GNU Binutils 2.32. It is a heap-based buffer overflow in bfdarchive64bitslurparmap in archive64.c...

Android Kernel < 4.8 - ptrace seccomp Filter Bypass Exploit

/ The seccomp.2 manpage http://man7.org/linux/man-pages/man2/seccomp.2.html documents: Before kernel 4.8, the seccomp check will not be run again after the tracer is notified. This means that, on older ker‐ nels, seccomp-based sandboxes must not allow use of ptrace2—even of other sandboxed...

The vulnerabilities of Intel, ARM, and AMD processors stem from the unique workings of the branch prediction module, which allows attackers to exploit the protected information.

The vulnerabilities of Intel, ARM, and AMD processors are related to the characteristics of the branch prediction module’s operation. Exploiting these vulnerabilities allows attackers to disclose confidential information by creating conditions for incorrect branch predictions...

nw-with-arm downloads Resources over HTTP

Affected versions of nw-with-arm insecurely download an executable over an unencrypted HTTP connection. In scenarios where an attacker has a privileged network position, it is possible to intercept the response and replace the executable with a malicious one, resulting in code execution on the...

GHSA-9JF3-F2PG-7868 nw-with-arm downloads Resources over HTTP

Affected versions of nw-with-arm insecurely download an executable over an unencrypted HTTP connection. In scenarios where an attacker has a privileged network position, it is possible to intercept the response and replace the executable with a malicious one, resulting in code execution on the...