Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : snapd vulnerability (USN-3917-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3917-1 advisory. The snapd default seccomp filter for strict mode snaps blocks the use of the ioctl system call when used with TIOCSTI as the second argume...

USN-3917-1: snapd vulnerability

The snapd default seccomp filter for strict mode snaps blocks the use of the ioctl system call when used with TIOCSTI as the second argument to the system call. Jann Horn discovered that this restriction could be circumvented on 64 bit architectures. A malicious snap could exploit this to bypass...

ALPINE-CVE-2019-9893

libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators LT, GT, LE, GE, which might able to lead to bypassing seccomp filters and potential privilege escalations...

CVE-2019-9893

libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators LT, GT, LE, GE, which might able to lead to bypassing seccomp filters and potential privilege escalations...

CVE-2019-7303

A vulnerability in the seccomp filters of Canonical snapd before version 2.37.4 allows a strict mode snap to insert characters into a terminal on a 64-bit host. The seccomp rules were generated to match 64-bit ioctl2 commands on a 64-bit platform; however, the Linux kernel only uses the lower 32...

libseccomp < 2.4.0 - Incorrect Compilation of Arithmetic Comparisons Exploit

When libseccomp compiles filters for 64-bit systems, it needs to split 64-bit comparisons into 32-bit comparisons because classic BPF can't operate on 64-bit values directly. libseccomp offers both bitwise comparisons NE, EQ, MASKEDEQ and arithmetic comparisons LT, LE, GE, GT. Bitwise comparisons...

libseccomp 2.4.0 - Incorrect Compilation of Arithmetic Comparisons

libseccomp 2.4.0 - Incorrect Compilation of Arithmetic Comparisons When libseccomp compiles filters for 64-bit systems, it needs to split 64-bit comparisons into 32-bit comparisons because classic BPF can't operate on 64-bit values directly. libseccomp offers both bitwise comparisons NE, EQ,...

libseccomp < 2.4.0 - Incorrect Compilation of Arithmetic Comparisons

When libseccomp compiles filters for 64-bit systems, it needs to split 64-bit comparisons into 32-bit comparisons because classic BPF can't operate on 64-bit values directly. libseccomp offers both bitwise comparisons NE, EQ, MASKEDEQ and arithmetic comparisons LT, LE, GE, GT. Bitwise comparisons...

Microsoft VBScript - VbsErase Memory Corruption

r eax=0000600c ebx=05dc10dc ecx=00000000 edx=00000000 esi=13371337 edi=05c5ca44 eip=6e0fc9fa esp=05c5ca28 ebp=05c5ca48 iopl=0 nv up ei pl zr na pe nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010246 VBSCRIPT!VbsErase+0x5a: 6e0fc9fa 8b3e mov edi,dword ptr esi ds:002b:13371337=????????...

libseccomp Incorrect Compilation Of Arithmetic Comparisons

libseccomp: incorrect compilation of arithmetic comparisons When libseccomp compiles filters for 64-bit systems, it needs to split 64-bit comparisons into 32-bit comparisons because classic BPF can't operate on 64-bit values directly. libseccomp offers both bitwise comparisons NE, EQ, MASKEDEQ an...

FreeBSD - Intel SYSRET Privilege Escalation (Metasploit)

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'FreeBSD Intel SYSRET Privilege Escalation', 'Description' = %q This module exploits a vulnerability in the FreeBSD kernel, when running on 64-bit...

FreeBSD Intel SYSRET Privilege Escalation

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'FreeBSD Intel SYSRET Privilege Escalation', 'Description' = %q This module exploits a vulnerability in the FreeBSD kernel, when running on 64-bit...

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...

x86 shadow: Insufficient TLB flushing when using PCID

ISSUE DESCRIPTION Use of Process Context Identifiers PCID was introduced into Xen in order to improve performance after XSA-254 and in particular its Meltdown sub-issue. This enablement implied changes to the TLB flushing logic. One aspect which was overlooked is the safety of switching between...

CVE-2018-18493

A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird 60.4, Firefox ESR 60.4, an...

WinRAR 5.61 - (.lng) Denial of Service Exploit

Exploit Title: WinRAR 5.61 - Denial of Service Author: Kağan Çapar Software Link: https://win-rar.com/predownload.html?spV=true&subD=true&f=wrar561tr.exe Vendor Homepage : https://www.win-rar.com Tested Version: 5.61 32 Bit Tested on OS: Windows 10 Education 64 Bit Steps to Reproduce: Run perl...

MaxxAudio Drivers WavesSysSvc64.exe 1.6.2.0 - Local Privilege Escalation

MaxxAudio Drivers WavesSysSvc64.exe 1.6.2.0 - Local Privilege Escalation Exploit Title: MaxxAudio Drivers WavesSysSvc64.exe File Permissions SYSTEM Privilege Escalation Google Dork: Date: 2/18/2019 Exploit Author: Mike Siegel @mlsiegel Vendor Homepage: https://maxx.com Software Link: Version:...

MaxxAudio Drivers WavesSysSvc64.exe 1.6.2.0 - Local Privilege Escalation

Exploit Title: MaxxAudio Drivers WavesSysSvc64.exe File Permissions SYSTEM Privilege Escalation Google Dork: Date: 2/18/2019 Exploit Author: Mike Siegel @mlsiegel Vendor Homepage: https://maxx.com Software Link: Version: 1.6.2.0 May affect other versions Tested on: Win 10 64 bit CVE :...

Security Update for Microsoft Excel 2016 (KB4462115) 64-Bit Edition

A security vulnerability exists in Microsoft Excel 2016 64-Bit Edition that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability...

Security Update for Microsoft Excel 2013 (KB4461597) 64-Bit Edition

A security vulnerability exists in Microsoft Excel 2013 64-Bit Edition that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability...