ID

VAR-201904-1427

CVE

CVE-2018-4337

TITLE

plural Apple Memory corruption vulnerability in products

DESCRIPTION

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5. Apple iOS, etc. are all products of Apple (Apple). Apple iOS is an operating system developed for mobile devices. Apple tvOS is a smart TV operating system. Apple macOS Mojave is a dedicated operating system developed for Mac computers. Kernel is one of the kernel components. A buffer error vulnerability exists in the Kernel component of several Apple products. An attacker could exploit this vulnerability to execute arbitrary code with kernel privileges. iOS kernel UaF due to bad error handling in personas CVE-2018-4337 There was recently some cleanup in the persona code to fix some race conditions there, I don't think it was sufficient: In kpersona_alloc_syscall if we provide an invalid userspace pointer for the ipd outptr we can cause this copyout to fail: error = copyout(&persona->pna_id, idp, sizeof(persona->pna_id)); if (error) goto out_error; This jumps here: if (persona) persona_put(persona); At this point the persona is actually in the global list and the reference has been transfered there; this code is mistakenly assuming that userspace can't still race a dealloc call because it doesn't know the id. The id is attacker controlled so it's easy to still race this (ie we call persona_alloc in one thread, and dealloc in another), causing an extra call to persona_put. It's probably possible to make the failing copyout take a long time, allowing us to gc and zone-swap the page leading to the code attempting to drop a ref on a different type. This PoC has been tested on iOS 11.3.1 because it requires root. I have taken a look at an iOS 12 beta and it looks like the vuln is still there, but I cannot test it. It should be easy to fix up this PoC to run as root in your testing environment. Found by: ianbeer . CVE-2018-4197: Ivan Fratric of Google Project Zero CVE-2018-4306: Ivan Fratric of Google Project Zero CVE-2018-4312: Ivan Fratric of Google Project Zero CVE-2018-4314: Ivan Fratric of Google Project Zero CVE-2018-4315: Ivan Fratric of Google Project Zero CVE-2018-4317: Ivan Fratric of Google Project Zero CVE-2018-4318: Ivan Fratric of Google Project Zero WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: A malicious website may exfiltrate image data cross-origin Description: A cross-site scripting issue existed in Safari. WebKit We would like to acknowledge Cary Hartline, Hanming Zhang from 360 Vuclan team, and Zach Malone of CA Technologies for their assistance. Installation note: Apple TV will periodically check for software updates. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2018-10-30-9 Additional information for APPLE-SA-2018-9-24-1 macOS Mojave 10.14 macOS Mojave 10.14 addresses the following: Bluetooth Available for: iMac (21.5-inch, Late 2012), iMac (27-inch, Late 2012) , iMac (21.5-inch, Late 2013), iMac (21.5-inch, Mid 2014), iMac (Retina 5K, 27-inch, Late 2014), iMac (21.5-inch, Late 2015), Mac mini (Mid 2011), Mac mini Server (Mid 2011), Mac mini (Late 2012) , Mac mini Server (Late 2012), Mac mini (Late 2014), Mac Pro (Late 2013), MacBook Air (11-inch, Mid 2011), MacBook Air (13-inch, Mid 2011), MacBook Air (11-inch, Mid 2012), MacBook Air (13-inch, Mid 2012), MacBook Air (11-inch, Mid 2013), MacBook Air (13-inch, Mid 2013), MacBook Air (11-inch, Early 2015), MacBook Air (13-inch, Early 2015), MacBook Pro (13-inch, Mid 2012), MacBook Pro (15-inch, Mid 2012), MacBook Pro (Retina, 13-inch, Early 2013), MacBook Pro (Retina, 15-inch, Early 2013), MacBook Pro (Retina, 13-inch, Late 2013), and MacBook Pro (Retina, 15-inch, Late 2013) Impact: An attacker in a privileged network position may be able to intercept Bluetooth traffic Description: An input validation issue existed in Bluetooth. CVE-2018-5383: Lior Neumann and Eli Biham The updates below are available for these Mac models: MacBook (Early 2015 and later), MacBook Air (Mid 2012 and later), MacBook Pro (Mid 2012 and later), Mac mini (Late 2012 and later), iMac (Late 2012 and later), iMac Pro (all models), Mac Pro (Late 2013, Mid 2010, and Mid 2012 models with recommended Metal-capable graphics processor, including MSI Gaming Radeon RX 560 and Sapphire Radeon PULSE RX 580) afpserver Impact: A remote attacker may be able to attack AFP servers through HTTP clients Description: An input validation issue was addressed with improved input validation. CVE-2018-4295: Jianjun Chen (@whucjj) from Tsinghua University and UC Berkeley Entry added October 30, 2018 App Store Impact: A malicious application may be able to determine the Apple ID of the owner of the computer Description: A permissions issue existed in the handling of the Apple ID. CVE-2018-4324: Sergii Kryvoblotskyi of MacPaw Inc. CVE-2018-4417: Lee of the Information Security Lab Yonsei University working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 Application Firewall Impact: A sandboxed process may be able to circumvent sandbox restrictions Description: A configuration issue was addressed with additional restrictions. CVE-2018-4353: Abhinav Bansal of LinkedIn Inc. APR Impact: Multiple buffer overflow issues existed in Perl Description: Multiple issues in Perl were addressed with improved memory handling. CVE-2017-12613: Craig Young of Tripwire VERT CVE-2017-12618: Craig Young of Tripwire VERT Entry added October 30, 2018 ATS Impact: A malicious application may be able to elevate privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4411: lilang wu moony Li of Trend Micro working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 ATS Impact: An application may be able to read restricted memory Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2018-4308: Mohamed Ghannam (@_simo36) Entry added October 30, 2018 Auto Unlock Impact: A malicious application may be able to access local users AppleIDs Description: A validation issue existed in the entitlement verification. CVE-2018-4321: Min (Spark) Zheng, Xiaolong Bai of Alibaba Inc. CVE-2018-4126: Bruno Keith (@bkth_) working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 CoreFoundation Impact: A malicious application may be able to elevate privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4412: The UK's National Cyber Security Centre (NCSC) Entry added October 30, 2018 CoreFoundation Impact: An application may be able to gain elevated privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4414: The UK's National Cyber Security Centre (NCSC) Entry added October 30, 2018 CoreText Impact: Processing a maliciously crafted text file may lead to arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2018-4347: an anonymous researcher Entry added October 30, 2018 Crash Reporter Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2018-4333: Brandon Azad CUPS Impact: In certain configurations, a remote attacker may be able to replace the message content from the print server with arbitrary content Description: An injection issue was addressed with improved validation. CVE-2018-4153: Michael Hanselmann of hansmi.ch Entry added October 30, 2018 CUPS Impact: An attacker in a privileged position may be able to perform a denial of service attack Description: A denial of service issue was addressed with improved validation. CVE-2018-4406: Michael Hanselmann of hansmi.ch Entry added October 30, 2018 Dictionary Impact: Parsing a maliciously crafted dictionary file may lead to disclosure of user information Description: A validation issue existed which allowed local file access. This was addressed with input sanitization. CVE-2018-4331: Brandon Azad CVE-2018-4332: Brandon Azad CVE-2018-4343: Brandon Azad Entry added October 30, 2018 Hypervisor Impact: Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis Description: An information disclosure issue was addressed by flushing the L1 data cache at the virtual machine entry. CVE-2018-3646: Baris Kasikci, Daniel Genkin, Ofir Weisse, and Thomas F. Wenisch of University of Michigan, Mark Silberstein and Marina Minkin of Technion, Raoul Strackx, Jo Van Bulck, and Frank Piessens of KU Leuven, Rodrigo Branco, Henrique Kawakami, Ke Sun, and Kekai Hu of Intel Corporation, Yuval Yarom of The University of Adelaide Entry added October 30, 2018 iBooks Impact: Parsing a maliciously crafted iBooks file may lead to disclosure of user information Description: A configuration issue was addressed with additional restrictions. CVE-2018-4355: evi1m0 of bilibili security team Entry added October 30, 2018 Intel Graphics Driver Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2018-4396: Yu Wang of Didi Research America CVE-2018-4418: Yu Wang of Didi Research America Entry added October 30, 2018 Intel Graphics Driver Impact: An application may be able to read restricted memory Description: A memory initialization issue was addressed with improved memory handling. CVE-2018-4351: Appology Team @ Theori working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 Intel Graphics Driver Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4350: Yu Wang of Didi Research America Entry added October 30, 2018 Intel Graphics Driver Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4334: Ian Beer of Google Project Zero Entry added October 30, 2018 IOHIDFamily Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved input validation CVE-2018-4408: Ian Beer of Google Project Zero Entry added October 30, 2018 IOKit Impact: A malicious application may be able to break out of its sandbox Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4341: Ian Beer of Google Project Zero CVE-2018-4354: Ian Beer of Google Project Zero Entry added October 30, 2018 IOKit Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved state management. CVE-2018-4401: Apple Entry added October 30, 2018 Kernel Impact: A malicious application may be able to leak sensitive user information Description: An access issue existed with privileged API calls. This issue was addressed with additional restrictions. CVE-2018-4399: Fabiano Anemone (@anoane) Entry added October 30, 2018 Kernel Impact: An attacker in a privileged network position may be able to execute arbitrary code Description: A memory corruption issue was addressed with improved validation. CVE-2018-4407: Kevin Backhouse of Semmle Ltd. CVE-2018-4336: Brandon Azad CVE-2018-4337: Ian Beer of Google Project Zero CVE-2018-4340: Mohamed Ghannam (@_simo36) CVE-2018-4344: The UK's National Cyber Security Centre (NCSC) CVE-2018-4425: cc working with Trend Micro's Zero Day Initiative, Juwei Lin (@panicaII) of Trend Micro working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 LibreSSL Impact: Multiple issues in libressl were addressed in this update Description: Multiple issues were addressed by updating to libressl version 2.6.4. CVE-2015-3194 CVE-2015-5333 CVE-2015-5334 CVE-2016-702 Entry added October 30, 2018 Login Window Impact: A local user may be able to cause a denial of service Description: A validation issue was addressed with improved logic. CVE-2018-4326: an anonymous researcher working with Trend Micro's Zero Day Initiative, Zhuo Liang of Qihoo 360 Nirvan Team Entry added October 30, 2018 MediaRemote Impact: A sandboxed process may be able to circumvent sandbox restrictions Description: An access issue was addressed with additional sandbox restrictions. CVE-2018-4310: CodeColorist of Ant-Financial LightYear Labs Entry added October 30, 2018 Microcode Impact: Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis Description: An information disclosure issue was addressed with a microcode update. This ensures that older data read from recently-written-to addresses cannot be read via a speculative side-channel. CVE-2018-3639: Jann Horn (@tehjh) of Google Project Zero (GPZ), Ken Johnson of the Microsoft Security Response Center (MSRC) Entry added October 30, 2018 Security Impact: A local user may be able to cause a denial of service Description: This issue was addressed with improved checks. CVE-2018-4395: Patrick Wardle of Digita Security Entry added October 30, 2018 Security Impact: An attacker may be able to exploit weaknesses in the RC4 cryptographic algorithm Description: This issue was addressed by removing RC4. CVE-2018-4393: Lufeng Li Entry added October 30, 2018 Symptom Framework Impact: An application may be able to read restricted memory Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2018-4203: Bruno Keith (@bkth_) working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 Text Impact: Processing a maliciously crafted text file may lead to a denial of service Description: A denial of service issue was addressed with improved validation. CVE-2018-4304: jianan.huang (@Sevck) Entry added October 30, 2018 Wi-Fi Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2018-4338: Lee @ SECLAB, Yonsei University working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 Additional recognition Accessibility Framework We would like to acknowledge Ryan Govostes for their assistance. Core Data We would like to acknowledge Andreas Kurtz (@aykay) of NESO Security Labs GmbH for their assistance. CoreDAV We would like to acknowledge an anonymous researcher for their assistance. CoreGraphics We would like to acknowledge Nitin Arya of Roblox Corporation for their assistance. CoreSymbolication We would like to acknowledge Brandon Azad for their assistance. IOUSBHostFamily We would like to acknowledge an anonymous researcher for their assistance. Kernel We would like to acknowledge Brandon Azad for their assistance. Mail We would like to acknowledge Alessandro Avagliano of Rocket Internet SE, John Whitehead of The New York Times, Kelvin Delbarre of Omicron Software Systems, and Zbyszek A>>A3Akiewski for their assistance. Quick Look We would like to acknowledge Wojciech ReguAa (@_r3ggi) of SecuRing and Patrick Wardle of Digita Security and lokihardt of Google Project Zero for their assistance. Security We would like to acknowledge Christoph Sinai, Daniel Dudek (@dannysapples) of The Irish Times and Filip KlubiAka (@lemoncloak) of ADAPT Centre, Dublin Institute of Technology, Istvan Csanady of Shapr3D, Omar Barkawi of ITG Software, Inc., Phil Caleno, Wilson Ding, and an anonymous researcher for their assistance. SQLite We would like to acknowledge Andreas Kurtz (@aykay) of NESO Security Labs GmbH for their assistance. Terminal We would like to acknowledge an anonymous researcher for their assistance. WindowServer We would like to acknowledge Patrick Wardle of Digita Security for their assistance. Installation note: macOS Mojave 10.14 may be obtained from the Mac App Store or Apple's Software Downloads web site: https://support.apple.com/downloads/ Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- iQJdBAEBCABHFiEEDNXJVNCJJEAVmJdZeC9tht7TK3EFAlvYkgYpHHByb2R1Y3Qt c2VjdXJpdHktbm9yZXBseUBsaXN0cy5hcHBsZS5jb20ACgkQeC9tht7TK3GrtxAA iVBcAdusz88zFzkT05EIxb9nSp4CGOlhKlChK4N7Db17o2fNT0hNpQixEAC0wC/A zqIzsXEzZlPobI4OnwiEVs7lVBsvCW+IarrRZ8pgSllKs1VlbNfOO3z9vB5BqJMr d9PjPvtHyG3jZmWqQPIjvJb3l3ZjHAt+HAvTItNMkhIUjqV80JI8wP3erzIf3tAt VoLIw5iL5w4HAYcWsn9DYcecXZdv39MnKL5UGzMX3bkee2U7kGYtgskU+mdPa1Wl WzquIPlLeKL2KNSXEfbkPtcKM/fvkURsNzEDvg+PBQLdI3JeR1bOeN24aiTEtiEL TecGm/kKMMJWmDdhPhFvZVD+SIdZd4LgbTawR1UE1JJg7jnEZKCvZ45mXd2eBwn/ rpEKCLBsgA59GILs3ZjZSIWskRJPzZrt463AKcN2wukkTUUkY1rhRVdOf6LZMs9Z w9iJOua3vt+HzCCxTEaH53WUeM6fn/Yeq+DGIS5Fk0G09pU7tsyJVwj3o1nJn0dl e2mcrXBJeSmi6bvvkJX45y/Y8E8Qr+ovS4uN8wG6DOWcCBQkDkugabng8vNh8GST 1wNnV9JY/CmYbU0ZIwKbbSDkcQLQuIl7kKaZMHnU74EytcKscUqqx1VqINz1tssu 1wZZGLtg3VubrZOsnUZzumD+0nI8c6QAnQK3P2PSZ0k= =i9YR -----END PGP SIGNATURE----- . 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AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

buffer error

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Ian Beer of Google Project Zero

SOURCES

LAST UPDATE DATE

2024-11-23T21:03:35.380000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE