Mitigations are attack surface, too

Posted by Jann Horn, Project Zero Introduction This blog post discusses a bug leading to memory corruption in Samsung's Android kernel specifically the kernel of the Galaxy A50, A505FN - I haven't looked at Samsung's kernels for other devices. I will describe the bug and how I wrote a very...

Google Android Kernel Component Elevation of Privilege Vulnerability (CNVD-2020-04527)

Android is a free and open source Linux-based operating system led and developed by Google Inc. and the Open Handset Alliance. An elevation of privilege vulnerability exists in the Kernel component Binder driver in Google Android. No details of the vulnerability are available at this time...

PT-2020-1243 · Google +5 · Android Kernel +5

Name of the Vulnerable Software and Affected Versions: Android kernel versions affected versions not specified Description: The issue is related to the uvc scan chain forward function in uvc driver.c, which could lead to linked list corruption due to an unusual root cause. This may result in loca...

CVE-2020-0009

In calcvmmayflags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for...

CVE-2020-0009

In calcvmmayflags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for...

UBUNTU-CVE-2020-0009

In calcvmmayflags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for...

Memory corruption

In calcvmmayflags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for...

CVE-2020-0009

In calcvmmayflags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for...

CVE-2020-0009

In calcvmmayflags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for...

CVE-2020-0009

In calcvmmayflags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for...

CVE-2020-0009

CVE-2020-0009 affects the Android kernel ashmem.c (calc_vm_may_flags): an insecure permissions bypass can allow an arbitrary write to shared memory, enabling local privilege escalation by corrupting inter-process memory. Exploitation is possible without user interaction, and no additional executi...

PT-2020-11378 · Google · Android Kernel

Name of the Vulnerable Software and Affected Versions: Android kernel versions affected versions not specified Description: The issue is related to a permissions bypass in the calc vm may flags function of ashmem.c, which could allow for an arbitrary write to shared memory. This could lead to a...

Google Android Kernel Component Elevation of Privilege Vulnerability (CNVD-2020-02990)

Android is a Linux-based open source operating system jointly developed by Google Inc. and the Open Handheld Alliance OHA for short. An elevation of privilege vulnerability exists in the Google Android Kernel component ashmem. An attacker can exploit this vulnerability to cause a local escalation...

CVE-2019-9472

In DCRYPTOequals of compare.c, there is a possible timing attack due to improperly used crypto. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID:...

CVE-2019-9471

In setoutboundiatu of abc-pcie.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID:...

Out-of-bounds

In setoutboundiatu of abc-pcie.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID:...

Information disclosure

In DCRYPTOequals of compare.c, there is a possible timing attack due to improperly used crypto. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID:...

CVE-2019-9470

In dmasblkstart of abc-pcie.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID:...

CVE-2019-9472

In DCRYPTOequals of compare.c, there is a possible timing attack due to improperly used crypto. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID:...

CVE-2019-9472

CVE-2019-9472 describes a timing side-channel in DCRYPTO_equals (compare.c) in the Android kernel/Titan-M component, enabling local information disclosure without extra privileges and without user interaction. Public details across sources confirm the root cause as improper crypto usage, with dis...