CVE-2017-18169

User process can perform the kernel DOS in ashmem when doing cache maintenance operation in all Android releasesAndroid for MSM, Firefox OS for MSM, QRD Android from CAF using the Linux kernel...

CVE-2017-18169

Technical details about CVE-2017-18169 (affected products, root cause, impact, fixes) are not provided in the connected documents; sources only note a kernel denial-of-service in ashmem during cache maintenance. Monitor for updates.

CVE-2017-18169

User process can perform the kernel DOS in ashmem when doing cache maintenance operation in all Android releasesAndroid for MSM, Firefox OS for MSM, QRD Android from CAF using the Linux kernel...

Chromium: Read-only SharedMemory descriptors on Android are writable(CVE-2018-6057)

VULNERABILITY DETAILS The base::SharedMemory class represents a shared memory resource that processes can map into their virtual address space. As shared memory mechanisms differ across operating systems, specialised implementations exist for each OS. In Android's case, the implementation is...

chromium-browser: incorrect permissions on shared memory

Lack of special casing of Android ashmem in Google Chrome prior to 65.0.3325.146 allowed a remote attacker who had compromised the renderer process to bypass inter-process read only guarantees via a crafted HTML page...

DEBIAN-CVE-2017-13216

In ashmemioctl of ashmem.c, there is an out-of-bounds write due to insufficient locking when accessing asma. This could lead to a local elevation of privilege enabling code execution as a privileged process with no additional execution privileges needed. User interaction is not needed for...

Android - Inter-Process munmap due to Race Condition in ashmem Exploit

Exploit for Android platform in category dos / poc The MemoryIntArray class allows processes to share an in-memory array of integers backed by an "ashmem" file descriptor. As the class implements the Parcelable interface, it can be inserted into a Parcel, and optionally placed in a Bundle and...

Android - Inter-Process munmap due to Race Condition in ashmem

The MemoryIntArray class allows processes to share an in-memory array of integers backed by an "ashmem" file descriptor. As the class implements the Parcelable interface, it can be inserted into a Parcel, and optionally placed in a Bundle and transferred via binder to remote processes. Instead of...

Android - Inter-Process munmap due to Race Condition in ashmem

Android - Inter-Process munmap due to Race Condition in ashmem The MemoryIntArray class allows processes to share an in-memory array of integers backed by an "ashmem" file descriptor. As the class implements the Parcelable interface, it can be inserted into a Parcel, and optionally placed in a...

Google Android Ashmem Group Elevation of Privilege Vulnerability

Android is a Linux-based open source operating system developed by Google and the Open Handheld Alliance OHA, of which Ashmem is a memory allocation sharing component. An elevation of privilege vulnerability exists in the Ashmem component in Android. A remote attacker could exploit this...

Android: Ashmem race conditions in android.util.MemoryIntArray (CVE-2017-0412)

The MemoryIntArray class allows processes to share an in-memory array of integers by transferring an ashmem file descriptor. As the class implements the Parcelable interface, it can be passed within a Parcel or a Bundle and transferred via binder to remote processes. Instead of directly tracking...

Google Android - Inter-process munmap in android.util.MemoryIntArray Vulnerability

Exploit for Android platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1001 The MemoryIntArray class allows processes to share an in-memory array of integers by transferring an ashmem file descriptor. As the class implements the Parcelable interface, ...

Google Android - android.util.MemoryIntArray Ashmem Race Conditions

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1002 The MemoryIntArray class allows processes to share an in-memory array of integers by transferring an ashmem file descriptor. As the class implements the Parcelable interface, it can be passed within a Parcel or a Bundle and...

Google Android - Inter-process munmap in android.util.MemoryIntArray

Google Android - Inter-process munmap in android.util.MemoryIntArray Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1001 The MemoryIntArray class allows processes to share an in-memory array of integers by transferring an ashmem file descriptor. As the class implements the...

Google Android - android.util.MemoryIntArray Ashmem Race Conditions

Google Android - android.util.MemoryIntArray Ashmem Race Conditions Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1002 The MemoryIntArray class allows processes to share an in-memory array of integers by transferring an ashmem file descriptor. As the class implements the...

Google Android - android.util.MemoryIntArray Ashmem Race Conditions Vulnerability

Exploit for Android platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1002 The MemoryIntArray class allows processes to share an in-memory array of integers by transferring an ashmem file descriptor. As the class implements the Parcelable interface, ...

Android - Inter-Process munmap with User-Controlled Size in android.graphics.Bitmap Vulnerability

Exploit for Android platform in category remote exploits Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=928 Bitmap objects can be passed between processes by flattening them to a Parcel in one process and un-flattening them in another. In order to conserve memory, there exists ...

Google Android - Inter-Process munmap with User-Controlled Size in android.graphics.Bitmap

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=928 Bitmap objects can be passed between processes by flattening them to a Parcel in one process and un-flattening them in another. In order to conserve memory, there exists a code path which allows Bitmaps to be shared between...

BitUnmap: Attacking Android Ashmem

Posted by Gal Beniamini, Project Zero The law of leaky abstractions states that “all non-trivial abstractions, to some degree, are leaky”. In this blog post we’ll explore the ashmem shared memory interface provided by Android and see how false assumptions about its internal operation can result i...

CVE-2016-5340

The isashmemfile function in drivers/staging/android/ashmem.c in a certain Qualcomm Innovation Center QuIC Android patch for the Linux kernel 3.x mishandles pointer validation within the KGSL Linux Graphics Module, which allows attackers to bypass intended access restrictions by using the /ashmem...