3644 matches found
FreeBSD : xen-kernel -- guest 32-bit ELF symbol table load leaking host data (5555120d-ba4d-11e6-ae1b-002590263bf5)
The Xen Project reports : Along with their main kernel binary, unprivileged guests may arrange to have their Xen environment load kernel symbol tables for their use. The ELF image metadata created for this purpose has a few unused bytes when the symbol table binary is in 32-bit ELF format. These...
FreeBSD : xen-kernel -- x86: Disallow L3 recursive pagetable for 32-bit PV guests (45ca25b5-ba4d-11e6-ae1b-002590263bf5)
The Xen Project reports : On real hardware, a 32-bit PAE guest must leave the USER and RW bit clear in L3 pagetable entries, but the pagetable walk behaves as if they were set. The L3 entries are cached in processor registers, and don't actually form part of the pagewalk. When running a 32-bit PV...
Linux Kernel 4.6.3 Netfilter Privilege Escalation
This module requires Metasploit: http://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework require "msf/core" class MetasploitModule 'Linux Kernel 4.6.3 Netfilter Privilege Escalation', 'Description' = %q This module attempts to exploit a netfilter bug on Linux...
guest 32-bit ELF symbol table load leaking host data
ISSUE DESCRIPTION Along with their main kernel binary, unprivileged guests may arrange to have their Xen environment load kernel symbol tables for their use. The ELF image metadata created for this purpose has a few unused bytes when the symbol table binary is in 32-bit ELF format. These unused...
x86 task switch to VM86 mode mis-handled
ISSUE DESCRIPTION LDTR, just like TR, is purely a protected mode facility. Hence even when switching to a VM86 mode task, LDTR loading needs to follow protected mode semantics. This was violated by the code. IMPACT On SVM AMD hardware: a malicious unprivileged guest process can escalate its...
xen-kernel -- x86 null segments not always treated as unusable
The Xen Project reports: The Xen x86 emulator erroneously failed to consider the unusability of segments when performing memory accesses. The intended behaviour is as follows: The user data segment %ds, %es, %fs and %gs selectors may be NULL in 32-bit to prevent access. In 64-bit, NULL has a...
Microsoft Edge - 'CTextExtractor::GetBlockText' Out-of-Bounds Read (MS16-104)
::first-letter border: 0; white-space: pre-line; Aalert;&xD;&xD;B Description Though I did not investigate thoroughly, I did find out the following: The root cause appears to be an integer underflow in a 32-bit variable used in CTextExtractor..GetBlockText as an index to read a WCHAR in a...
Fedora 25 : xen (2016-1d8429b89f)
fix build problem with glibc 2.24 x86: Disallow L3 recursive pagetable for 32-bit PV guests XSA-185, CVE-2016-7092 x86: Mishandling of instruction pointer truncation during emulation XSA-186, CVE-2016-7093 x86 HVM: Overflow of shctxt-segreg XSA-187, CVE-2016-7094 pandoc documentation has dependen...
Microsoft Windows CVE-2016-7223 Local Privilege Escalation Vulnerability
Description Microsoft Windows is prone to a local privilege-escalation vulnerability. A local attacker can exploit this issue to run processes with elevated privileges. Technologies Affected Microsoft Windows 10 Version 1607 for 32-bit Systems Microsoft Windows 10 Version 1607 for x64-based Syste...
Microsoft Windows Kernel 'Win32k.sys' CVE-2016-7246 Local Privilege Escalation Vulnerability
Description Microsoft Windows is prone to a local privilege-escalation vulnerability that occurs in the Windows kernel. A local attacker can exploit this issue to execute arbitrary code in kernel mode with elevated privileges. Technologies Affected Microsoft Windows 10 Version 1607 for 32-bit...
Microsoft Windows Kernel 'Win32k.sys' CVE-2016-7255 Local Privilege Escalation Vulnerability
Description Microsoft Windows is prone to a local privilege-escalation vulnerability that occurs in the Windows kernel. A local attacker can exploit this issue to execute arbitrary code in kernel mode with elevated privileges. Technologies Affected Microsoft Windows 10 Version 1607 for 32-bit...
Microsoft Windows CVE-2016-7224 Local Privilege Escalation Vulnerability
Description Microsoft Windows is prone to a local privilege-escalation vulnerability. A local attacker can exploit this issue to run processes with elevated privileges. Technologies Affected Microsoft Windows 10 Version 1607 for 32-bit Systems Microsoft Windows 10 Version 1607 for x64-based Syste...
Microsoft Windows CVE-2016-7225 Local Privilege Escalation Vulnerability
Description Microsoft Windows is prone to a local privilege-escalation vulnerability. A local attacker can exploit this issue to run processes with elevated privileges. Technologies Affected Microsoft Windows 10 Version 1607 for 32-bit Systems Microsoft Windows 10 Version 1607 for x64-based Syste...
Microsoft SQL Server CVE-2016-7254 Privilege Escalation Vulnerability
Description Microsoft SQL Server is prone to a privilege-escalation vulnerability. An attacker can exploit this issue to gain elevated privileges. Technologies Affected Microsoft SQL Server 2012 for 32-bit Systems Service Pack 2 Microsoft SQL Server 2012 for 32-bit Systems Service Pack 3 Microsof...
Microsoft Windows Kernel 'Win32k.sys' CVE-2016-7215 Local Privilege Escalation Vulnerability
Description Microsoft Windows is prone to a local privilege-escalation vulnerability that occurs in the Windows kernel. A local attacker can exploit this issue to execute arbitrary code in kernel mode with elevated privileges. Technologies Affected Microsoft Windows 10 Version 1607 for 32-bit...
CVE-2016-8617
The base64 encode function in curl before version 7.51.0 is prone to a buffer being under allocated in 32bit systems if it receives at least 1Gb as input via CURLOPTUSERNAME...
CVE-2016-8618
The libcurl API function called curlmaprintf before version 7.51.0 can be tricked into doing a double-free due to an unsafe sizet multiplication, on systems using 32 bit sizet variables...
URL unescape heap overflow via integer truncation
The URL percent-encoding decode function in libcurl is called curleasyunescape. Internally, even if this function would be made to allocate a destination buffer larger than 2GB, it would return that new length in a signed 32-bit integer variable, thus the length would get either truncated only or...
CURL-CVE-2016-8618 double free in curl_maprintf
The libcurl API function called curlmaprintf can be tricked into doing a double free due to an unsafe sizet multiplication, on systems using 32-bit sizet variables. The function is also used internally in numerous situations. The function doubles an allocated memory area with realloc and allows t...
UBUNTU-CVE-2016-8618
The libcurl API function called curlmaprintf before version 7.51.0 can be tricked into doing a double-free due to an unsafe sizet multiplication, on systems using 32 bit sizet variables...