Apple macOS Kernel - Use-After-Free Due to Lack of Locking in nvidia GeForce Driver

/ nvDevice::SetAppSupportBits is external method 0x107 of the nvAccelerator IOService. It calls taskdeallocate without locking. Two threads can race calling this external method to drop two task references when only one is held. Note that the repro forks a child which give the nvAccelerator a...

CVE-2018-4136

An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the "Kernel" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service out-of-bounds read via a crafted app...

macOS Kernel - Use-After-Free Due to Lack of Locking in AppleEmbeddedOSSupportHostClient::registerNo

Exploit for macOS platform in category dos / poc / AppleEmbeddedOSSupportHost.kext is presumably involved in the communication with the OS running on the touch bar on new MBP models. Here's the userclient's registerNotificationPort method: text:0000000000002DE4 ;...

macOS Kernel - Use-After-Free Due to Lack of Locking in AppleEmbeddedOSSupportHostClient::registerNotificationPort

macOS Kernel - Use-After-Free Due to Lack of Locking in AppleEmbeddedOSSupportHostClient::registerNotificationPort / AppleEmbeddedOSSupportHost.kext is presumably involved in the communication with the OS running on the touch bar on new MBP models. Here's the userclient's registerNotificationPort...

macOS Kernel - Use-After-Free Due to Lack of Locking in 'AppleEmbeddedOSSupportHostClient::registerNotificationPort'

/ AppleEmbeddedOSSupportHost.kext is presumably involved in the communication with the OS running on the touch bar on new MBP models. Here's the userclient's registerNotificationPort method: text:0000000000002DE4 ; AppleEmbeddedOSSupportHostClient::registerNotificationPortipcport , unsigned int,...

CVE-2017-13782

An issue was discovered in certain Apple products. macOS before 10.13.1 is affected. The issue involves the "Kernel" component. It allows attackers to bypass intended memory-read restrictions via a /dev/dtracehelper attack involving the dtracedifvariable and dtracegetarg functions...

CVE-2017-7067

An issue was discovered in certain Apple products. macOS before 10.12.6 is affected. The issue involves the "Kernel" component. It allows attackers to bypass intended memory-read restrictions via a crafted app...

How to use JavaScript array extensions integer overflow vulnerabilities in WebKit-a vulnerability warning-the black bar safety net

I will be in this article to tell you about the vulnerability, CVE-2017-2536/ZDI-17-358, which is a typical plastic overflow vulnerability, when the system is in the calculation of the allocated space size, the vulnerability will likely lead to a heap buffer overflow. We not only give you...

CVE-2017-2494

An issue was discovered in certain Apple products. macOS before 10.12.5 is affected. The issue involves the "Kernel" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service memory corruption via a crafted app...

macOS Kernel 10.12.3 (16D32) - Use-After-Free Due to Double-Release in posix_spawn Exploit

Exploit for multiple platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1104 exechandleportactions is responsible for handling the xnu port actions extension to posixspawn. It supports 4 different types of port PSPASPECIAL, PSPAEXCEPTION,...

Apple macOS 10.12.1 iOS Kernel - host_self_trap Use-After-Free

Apple macOS 10.12.1 iOS Kernel - hostselftrap Use-After-Free / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1034 The task struct has a lock itklockdata, taken via the itklock macros which is supposed to protect the task-itk ports. The hostselftrap mach trap accesses...

MacOS Kernel 10.12 - Double vm_deallocate in Userspace MIG Code Use-After-Free Exploit

Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=954 Proofs of Concept: https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/40954.zip Userspace MIG services often use machmsgserver or...

Apple macOS 10.12.1 Kernel - Writable Privileged IOKit Registry Properties Code Execution

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=974 There are two ways for IOServices to define their IOUserClient classes: they can override IOService::newUserClient and allocate the correct type themselves or they can set the IOUserClientClass key in their registry entry. Th...

Vulnerabilities of iOS and Mac OS X operating systems, which allow a hacker to execute arbitrary code in a privileged context

The multiple vulnerabilities in the kernels of iOS and Mac OS X operating systems are caused by numerical overflows. Exploitation of these vulnerabilities allows a malicious actor to execute arbitrary code in a privileged context using a specially created application...