Oracle Linux 7 : kernel (ELSA-2017-1842)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-1842 advisory. - The doumount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAPSYSADMIN capability for doremountsb calls that chang...

openSUSE Security Update : openvpn (openSUSE-2017-730)

This update for openvpn fixes the following issues : - Some parts of the certificate-parsing code did not always clear all allocated memory. This would have allowed clients to leak a few bytes of memory for each connection attempt, thereby facilitating a quite inefficient DoS attack on the server...

Microsoft Windows - nt!NtQueryInformationResourceManager (information class 0) Kernel Stack Memory D

Exploit for windows platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1207 We have discovered that the nt!NtQueryInformationResourceManager system call called with the 0 information class discloses portions of uninitialized kernel stack memory to...

Microsoft Windows - win32k!NtGdiExtGetObjectW Kernel Stack Memory Disclosure Exploit

Exploit for windows platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1178 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory in Windows 7-10 through the win32k!NtGdiExtGetObjectW system call accessible...

Windows Kernel stack memory disclosure in win32k!ClientPrinterThunk(CVE-2017-8475)

We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7 other platforms untested indirectly through the win32k!NtGdiOpenDCW system call. The analysis shown below was performed on Windows 7 32-bit. The full stack trace...

Windows Kernel stack memory disclosure in win32k!NtGdiGetTextMetricsW(CVE-2017-8472)

We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7 other systems untested through the win32k!NtGdiGetTextMetricsW system call. The output structure used by the syscall, according to various sources, is TMWINTERNA...

Windows Kernel stack memory disclosure in nt!NtQueryInformationResourceManager(CVE-2017-8481)

We have discovered that the nt!NtQueryInformationResourceManager system call called with the 0 information class discloses portions of uninitialized kernel stack memory to user-mode clients, on Windows 7 to Windows 10. The specific name of the 0 information class or the layout of the correspondin...

Updated kernel-linus packages fixes critical security vulnerabilities

This kernel-linus update is based on upstream 4.4.74 and fixes at least the following security issues: The ipxitfioctl function in net/ipx/afipx.c in the Linux kernel through 4.11.1 mishandles reference counts, which allows local users to cause a denial of service use-after-free or possibly have...

Linux in the Stack Clash vulnerabilities that may be exploited by hackers to obtain local root privileges-bug warning-the black bar safety net

Last month, Qualys security researchers in a variety of Unix-based Systems found on called the“Stack Clash”the vulnerability could allow an attacker on a UNIX system to gain root privileges and take over the attack computer. Currently security researchers discovered this flaw and are working with...

Microsoft Windows - 'win32k!NtGdiExtGetObjectW' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1178 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory in Windows 7-10 through the win32k!NtGdiExtGetObjectW system call accessible via a documented GetObject API function to user-mo...

Microsoft Windows - win32k!NtGdiExtGetObjectW Kernel Stack Memory Disclosure

Microsoft Windows - win32k!NtGdiExtGetObjectW Kernel Stack Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1178 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory in Windows 7-10 through the...

Microsoft Windows - nt!NtQueryInformationProcess (ProcessVmCounters) Kernel Stack Memory Disclosure

Microsoft Windows - nt!NtQueryInformationProcess ProcessVmCounters Kernel Stack Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1190&desc=2 We have discovered that the nt!NtQueryInformationProcess system call called with the ProcessVmCounters information clas...

Microsoft Windows - 'nt!NtQueryInformationJobObject (information class 12)' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1193 We have discovered that the nt!NtQueryInformationJobObject system call corresponding to the documented QueryInformationJobObject API function called with the 12 information class discloses portions of uninitialized kernel...

Microsoft Windows - 'win32k!NtGdiGetOutlineTextMetricsInternalW' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1179 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7-10 through the win32k!NtGdiGetOutlineTextMetricsInternalW system call. The system call...

Microsoft Windows - 'win32k!NtGdiMakeFontDir' Kernel Stack Memory Disclosure

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1191 We have discovered that the win32k!NtGdiMakeFontDir system call discloses large portions of uninitialized kernel stack memory to user-mode clients. The attached proof of concept code which is specific to Windows 7 32-bit works...

OpenBSD 'qsort()' Function Denial of Service Vulnerability

OpenBSD is a BSD-based UNIX-like operating system. A security vulnerability in the OpenBSD 'qsort' function allows an attacker to exploit the vulnerability to submit a special request, consume stack memory resources, and conduct a denial of service attack...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

glibc: heap/stack gap jumping via unbounded stack allocations

A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap or different memory region and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process sta...

kernel: heap/stack gap jumping via unbounded stack allocations

A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap or different memory region and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process sta...

kernel: heap/stack gap jumping via unbounded stack allocations

A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap or different memory region and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process sta...