Exploitalert - Database of Exploits

macOS RawCamera Out-Of-Bounds Write

CVE	Category	Price	Severity
CVE-2022-32802	CWE-119	$10,000	High

Author	Risk	Exploitation Type	Date
Unknown	High	Local	2022-08-22

CPE
cpe:cpe:/a:apple:macos

CVSS	EPSS	EPSSP
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L	0.02483	0.52607

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Local	AV	The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
Scope		S	An exploited vulnerability can affect resources beyond the security scope managed by the security authority that is managing the vulnerable component. This is often referred to as a 'privilege escalation,' where the attacker can use the exploited vulnerability to gain control of resources that were not intended or authorized.
Confidentiality	Low	C	There is some impact on confidentiality, but the attacker either does not gain control of any data, or the information obtained does not have a significant impact on the system or its operations.
Integrity	Low	I	Modification of data is possible, but the attacker does not have control over what can be modified, or the extent of what the attacker can affect is limited. The data modified does not have a direct, serious impact on the system.
Availability	Low	A	There is reduced performance or interruptions in resource availability. However, the attacker does not have the ability to completely prevent access to the resources or services; the impact is limited.

https://cxsecurity.com/ascii/WLB-2022080066

macOS RawCamera Out-Of-Bounds Write

MacOS: Out-of-bounds write in RawCamera There is an out-of-bounds write vulnerability when decoding a certain flavor of RAW image files on macOS. The vulnerability has been confirmed on macOS 12.3.1. A zipped proof of concept file is attached. The easiest way to demonstrate the vulnerability is doubleclick the crash.raw file to open it in Preview, after which Preview will crash with the call stack provided below. Process 2146 stopped * thread #4, queue = 'ProviderImageSurfaceCacheQueue', stop reason = EXC_BAD_ACCESS (code=1, address=0x123971000) frame #0: 0x00007ff91009f0a5 RawCamera`___lldb_unnamed_symbol2861$$RawCamera + 8643 RawCamera`___lldb_unnamed_symbol2861$$RawCamera: -> 0x7ff91009f0a5 <+8643>: movw %ax, (%rcx) 0x7ff91009f0a8 <+8646>: movzbl -0x2(%rbx,%r14), %eax 0x7ff91009f0ae <+8652>: movzbl -0x2(%rbx,%r12), %ecx 0x7ff91009f0b4 <+8658>: shlq $0x8, %rax Target 0: (Preview) stopped. (lldb) bt * thread #4, queue = 'ProviderImageSurfaceCacheQueue', stop reason = EXC_BAD_ACCESS (code=1, address=0x123971000) * frame #0: 0x00007ff91009f0a5 RawCamera`___lldb_unnamed_symbol2861$$RawCamera + 8643 frame #1: 0x00007ff9100a0047 RawCamera`___lldb_unnamed_symbol2866$$RawCamera + 563 frame #2: 0x00007ff90ffda53b RawCamera`___lldb_unnamed_symbol441$$RawCamera + 361 frame #3: 0x00007ff91006b69e RawCamera`___lldb_unnamed_symbol2032$$RawCamera + 109 frame #4: 0x00007ff80c733dfd CoreImage`__103-[CIImage(CIImageProvider) _initWithImageProvider:width:height:format:colorSpace:surfaceCache:options:]_block_invoke + 47 frame #5: 0x00007ff80c955f67 CoreImage`invocation function for block in CI::ProviderNode::surfaceForROI(CI::Context const*, CGRect const&) const + 197 frame #6: 0x00007ff80c6f2d80 CoreImage`SurfaceApplyPlaneBlock + 381 frame #7: 0x00007ff80c955e9c CoreImage`invocation function for block in CI::ProviderNode::surfaceForROI(CI::Context const*, CGRect const&) const + 87 frame #8: 0x00007ff80c725e89 CoreImage`invocation function for block in CI::SurfaceCacheEntry::fillAsync() + 114 frame #9: 0x00007ff8032920cc libdispatch.dylib`_dispatch_call_block_and_release + 12 frame #10: 0x00007ff803293317 libdispatch.dylib`_dispatch_client_callout + 8 frame #11: 0x00007ff803299317 libdispatch.dylib`_dispatch_lane_serial_drain + 672 frame #12: 0x00007ff803299e30 libdispatch.dylib`_dispatch_lane_invoke + 417 frame #13: 0x00007ff8032a3eee libdispatch.dylib`_dispatch_workloop_worker_thread + 753 frame #14: 0x00007ff80344afd0 libsystem_pthread.dylib`_pthread_wqthread + 326 frame #15: 0x00007ff803449f57 libsystem_pthread.dylib`start_wqthread + 15 This bug is subject to a 90-day disclosure deadline. If a fix for this issue is made available to users before the end of the 90-day deadline, this bug report will become public 30 days after the fix was made available. Otherwise, this bug report will become public at the deadline. The scheduled deadline is 2022-07-27. Related CVE Numbers: CVE-2022-32802. Found by: [email protected]

Impressum