Xen: Privilege Escalation

Background Xen is a bare-metal hypervisor. Description In CIRRUSBLTMODEMEMSYSSRC mode the bitblit copy routine cirrusbitbltcputovideo fails to check wethehr the specified memory region is safe. Impact A local attacker could potentially execute arbitrary code with privileges of Xen QEMU process on...

Microsoft Office PowerPoint 2010 - MSO!Ordinal5429 Missing Length Check Heap Corruption

Microsoft Office PowerPoint 2010 - MSO!Ordinal5429 Missing Length Check Heap Corruption Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=949 Platform: Microsoft Office 2010 on Windows 7 x86 Class: heap memory corruption The following crash was observed in Microsoft Office 2010...

xen-tools -- cirrus_bitblt_cputovideo does not check if memory region is safe

The Xen Project reports: In CIRRUSBLTMODEMEMSYSSRC mode the bitblit copy routine cirrusbitbltcputovideo fails to check whether the specified memory region is safe. A malicious guest administrator can cause an out of bounds memory write, very likely exploitable as a privilege escalation...

UBUNTU-CVE-2015-8817

QEMU aka Quick Emulator built to use 'addressspacetranslate' to map an address to a MemoryRegionSection is vulnerable to an OOB r/w access issue. It could occur while doing pcidmaread/write calls. Affects QEMU versions = 1.6.0 and = 2.3.1. A privileged user inside guest could use this flaw to cra...

Qemu: OOB access in address_space_rw leads to segmentation fault

An out-of-bounds flaw was found in the QEMU emulator built using 'addressspacetranslate' to map an address to a MemoryRegionSection. The flaw could occur while doing pcidmaread/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw...

Qemu: OOB access in address_space_rw leads to segmentation fault

An out-of-bounds flaw was found in the QEMU emulator built using 'addressspacetranslate' to map an address to a MemoryRegionSection. The flaw could occur while doing pcidmaread/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw...

Qemu: OOB access in address_space_rw leads to segmentation fault

An out-of-bounds flaw was found in the QEMU emulator built using 'addressspacetranslate' to map an address to a MemoryRegionSection. The flaw could occur while doing pcidmaread/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw...

Qemu: OOB access in address_space_rw leads to segmentation fault

An out-of-bounds flaw was found in the QEMU emulator built using 'addressspacetranslate' to map an address to a MemoryRegionSection. The flaw could occur while doing pcidmaread/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw...

Qemu: OOB access in address_space_rw leads to segmentation fault

An out-of-bounds flaw was found in the QEMU emulator built using 'addressspacetranslate' to map an address to a MemoryRegionSection. The flaw could occur while doing pcidmaread/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw...

Qemu: OOB access in address_space_rw leads to segmentation fault

An out-of-bounds flaw was found in the QEMU emulator built using 'addressspacetranslate' to map an address to a MemoryRegionSection. The flaw could occur while doing pcidmaread/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw...

Qemu: OOB access in address_space_rw leads to segmentation fault

An out-of-bounds flaw was found in the QEMU emulator built using 'addressspacetranslate' to map an address to a MemoryRegionSection. The flaw could occur while doing pcidmaread/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw...

Qemu: OOB access in address_space_rw leads to segmentation fault

An out-of-bounds flaw was found in the QEMU emulator built using 'addressspacetranslate' to map an address to a MemoryRegionSection. The flaw could occur while doing pcidmaread/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw...

Qemu: OOB access in address_space_rw leads to segmentation fault

An out-of-bounds flaw was found in the QEMU emulator built using 'addressspacetranslate' to map an address to a MemoryRegionSection. The flaw could occur while doing pcidmaread/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw...

libarchive: Unclear crashes in ZIP parser

A vulnerability was found in libarchive. A specially crafted ZIP file could cause a few bytes of application memory in a 256-byte region to be disclosed...

QEMU Denial of Service Vulnerability (CNVD-2016-01944)

QEMU is a simulation processor software developed by French programmer Fabrice Bellard. The software is fast and cross-platform. A security vulnerability exists in QEMU versions 1.6.0 through 2.3.1. When a program maps addresses to MemoryRegionSection using 'addressspacetranslate', an attacker ca...

libxml2 - xmlDictAddString Heap Buffer Overread

Source: https://code.google.com/p/google-security-research/issues/detail?id=637 The following crash due to a heap-based out-of-bounds memory read can be observed in an ASAN build of latest stable libxml2 2.9.3, released 4 days ago, by feeding a malformed file to xmllint "$ ./xmllint --html...

kernel: infiniband: uverbs: unprotected physical memory access

It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the uverbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate...

kernel: infiniband: uverbs: unprotected physical memory access

It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the uverbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate...

Memory corruption

The Off Main Thread Compositing OMTC implementation in Mozilla Firefox before 37.0 attempts to use memset for a memory region of negative length during interaction with the mozilla::layers::BufferTextureClient::AllocateForSurface function, which allows remote attackers to execute arbitrary code o...

kernel: infiniband: uverbs: unprotected physical memory access

It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the uverbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate...