CVE-2019-8820
published 2019-12-18CVE-2019-8820: Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.2 and iPadOS 13.2, tvOS 13.2, watchOS 6.1, Safari…
PriorityP267high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
9.54%
94.9th percentile
Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.2 and iPadOS 13.2, tvOS 13.2, watchOS 6.1, Safari 13.0.3, iTunes for Windows 12.10.2, iCloud for Windows 11.0, iCloud for Windows 7.15. Processing maliciously crafted web content may lead to arbitrary code execution.
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | icloud | < 7.15 | 7.15 |
| apple | icloud | >= 10.0 < 10.8 | 10.8 |
| apple | icloud_for_windows | — | — |
| apple | icloud_for_windows | — | — |
| apple | icloud_for_windows | >= unspecified < iCloud for Windows 11.0 | iCloud for Windows 11.0 |
| apple | icloud_for_windows | >= unspecified < iCloud for Windows 7.15 | iCloud for Windows 7.15 |
| apple | ios | >= unspecified < iOS 13.2 and iPadOS 13.2 | iOS 13.2 and iPadOS 13.2 |
| apple | ios_13.2_and_ipados | — | — |
| apple | ipados | < 13.2 | 13.2 |
| apple | iphone_os | < 13.2 | 13.2 |
| apple | itunes | < 12.10.2 | 12.10.2 |
| apple | itunes_12.10.2_for_windows | — | — |
| apple | itunes_for_windows | >= unspecified < iTunes for Windows 12.10.2 | iTunes for Windows 12.10.2 |
| apple | safari | < 13.0.3 | 13.0.3 |
| apple | safari | — | — |
| apple | safari | >= unspecified < Safari 13.0.3 | Safari 13.0.3 |
| apple | tvos | < 13.2 | 13.2 |
| apple | tvos | — | — |
| apple | tvos | >= unspecified < tvOS 13.2 | tvOS 13.2 |
| apple | watchos | < 6.1 | 6.1 |
| apple | watchos | — | — |
| apple | watchos | >= unspecified < watchOS 6.1 | watchOS 6.1 |
| debian | webkit2gtk | < webkit2gtk 2.26.1-1 (bookworm) | webkit2gtk 2.26.1-1 (bookworm) |
Detection & IOCsextracted from sources · hover to see the quote
- →The vulnerability is a type confusion in JavaScriptCore (JSC) triggered during DFG JIT bailout when reconstructing Arguments objects. The confusion occurs in operationCreateDirectArgumentsDuringExit when a reused bytecode register (loc30) holding the global object is incorrectly used as the callee (JSFunction*) for a DirectArguments object. ↗
- →The crash/type confusion is detectable in debug builds via a JSC assertion failure in WriteBarrier validation (validateCell) when a non-JSFunction cell is stored as a callee. Monitor for JSC assertion failures or crashes in operationCreateDirectArgumentsDuringExit as a sign of exploitation attempts. ↗
- →The PoC trigger pattern involves setting Object.__proto__ to an array, running a for-loop that calls an inlined function referencing arguments objects, and using new Function() to trigger a DFG bailout. Detection of this JS pattern in web content may indicate exploitation attempts. ↗
- →The vulnerability is in the WebKit/JavaScriptCore component. Monitor crash reports referencing the call stack frames: operationCreateDirectArgumentsDuringExit, JSC::DirectArguments::setCallee, JSC::WriteBarrierBase::set, and void JSC::validateCell(JSC::JSFunction*). ↗
- ·The PoC is highly sensitive to bytecode register allocation; most modifications will break the trigger condition, making reliable reproduction difficult. ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
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Red Hat
webkitgtk: Multiple memory corruption issues leading to arbitrary code execution
vendor_redhat·2019-11-08·CVSS 8.8
CVE-2019-8820 [HIGH] webkitgtk: Multiple memory corruption issues leading to arbitrary code execution
webkitgtk: Multiple memory corruption issues leading to arbitrary code execution
Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.2 and iPadOS 13.2, tvOS 13.2, watchOS 6.1, Safari 13.0.3, iTunes for Windows 12.10.2, iCloud for Windows 11.0, iCloud for Windows 7.15. Processing maliciously crafted web content may lead to arbitrary code execution.
Package: webkitgtk (Red Hat Enterprise Linux 6) - Out of support scope
Package: webkitgtk3 (Red Hat Enterprise Linux 7) - Will not fix
Apple
CVE-2019-8820: iTunes 12.10.2 for Windows
vendor_apple·2019-10-30·CVSS 8.8
CVE-2019-8820 [HIGH] CVE-2019-8820: iTunes 12.10.2 for Windows
Apple Security Update: About the security content of iTunes 12.10.2 for Windows
Product: iTunes 12.10.2 for Windows
CVE: CVE-2019-8820
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2019-8820: iCloud for Windows 10.8
vendor_apple·2019-10-30·CVSS 8.8
CVE-2019-8820 [HIGH] CVE-2019-8820: iCloud for Windows 10.8
Apple Security Update: About the security content of iCloud for Windows 10.8
Product: iCloud for Windows
Version: 10.8
CVE: CVE-2019-8820
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2019-8820: iCloud for Windows 7.15
vendor_apple·2019-10-30·CVSS 8.8
CVE-2019-8820 [HIGH] CVE-2019-8820: iCloud for Windows 7.15
Apple Security Update: About the security content of iCloud for Windows 7.15
Product: iCloud for Windows
Version: 7.15
CVE: CVE-2019-8820
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2019-8820: watchOS 6.1
vendor_apple·2019-10-29·CVSS 8.8
CVE-2019-8820 [HIGH] CVE-2019-8820: watchOS 6.1
Apple Security Update: About the security content of watchOS 6.1
Product: watchOS
Version: 6.1
CVE: CVE-2019-8820
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2019-8820: tvOS 13.2
vendor_apple·2019-10-28·CVSS 8.8
CVE-2019-8820 [HIGH] CVE-2019-8820: tvOS 13.2
Apple Security Update: About the security content of tvOS 13.2
Product: tvOS
Version: 13.2
CVE: CVE-2019-8820
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2019-8820: iOS 13.2 and iPadOS 13.2
vendor_apple·2019-10-28·CVSS 8.8
CVE-2019-8820 [HIGH] CVE-2019-8820: iOS 13.2 and iPadOS 13.2
Apple Security Update: About the security content of iOS 13.2 and iPadOS 13.2
Product: iOS 13.2 and iPadOS
Version: 13.2
CVE: CVE-2019-8820
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2019-8820: Safari 13.0.3
vendor_apple·2019-10-28·CVSS 8.8
CVE-2019-8820 [HIGH] CVE-2019-8820: Safari 13.0.3
Apple Security Update: About the security content of Safari 13.0.3
Product: Safari
Version: 13.0.3
CVE: CVE-2019-8820
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Debian
CVE-2019-8820: webkit2gtk - Multiple memory corruption issues were addressed with improved memory handling. ...
vendor_debian·2019·CVSS 8.8
CVE-2019-8820 [HIGH] CVE-2019-8820: webkit2gtk - Multiple memory corruption issues were addressed with improved memory handling. ...
Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.2 and iPadOS 13.2, tvOS 13.2, watchOS 6.1, Safari 13.0.3, iTunes for Windows 12.10.2, iCloud for Windows 11.0, iCloud for Windows 7.15. Processing maliciously crafted web content may lead to arbitrary code execution.
Scope: local
bookworm: resolved (fixed in 2.26.1-1)
bullseye: resolved (fixed in 2.26.1-1)
forky: resolved (fixed in 2.26.1-1)
sid: resolved (fixed in 2.26.1-1)
trixie: resolved (fixed in 2.26.1-1)
GHSA
GHSA-6vqf-wwv4-9qqh: Multiple memory corruption issues were addressed with improved memory handling
ghsa_unreviewed·2022-05-24
CVE-2019-8820 [MEDIUM] CWE-119 GHSA-6vqf-wwv4-9qqh: Multiple memory corruption issues were addressed with improved memory handling
Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.2 and iPadOS 13.2, tvOS 13.2, watchOS 6.1, Safari 13.0.3, iTunes for Windows 12.10.2, iCloud for Windows 11.0, iCloud for Windows 7.15. Processing maliciously crafted web content may lead to arbitrary code execution.
OSV
CVE-2019-8820: Multiple memory corruption issues were addressed with improved memory handling
osv·2019-12-18·CVSS 8.8
CVE-2019-8820 [HIGH] CVE-2019-8820: Multiple memory corruption issues were addressed with improved memory handling
Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.2 and iPadOS 13.2, tvOS 13.2, watchOS 6.1, Safari 13.0.3, iTunes for Windows 12.10.2, iCloud for Windows 11.0, iCloud for Windows 7.15. Processing maliciously crafted web content may lead to arbitrary code execution.
No detection rules found.
https://security.gentoo.org/glsa/202003-22https://support.apple.com/HT210721https://support.apple.com/HT210723https://support.apple.com/HT210724https://support.apple.com/HT210725https://support.apple.com/HT210726https://support.apple.com/HT210727https://support.apple.com/HT210728https://security.gentoo.org/glsa/202003-22https://support.apple.com/HT210721https://support.apple.com/HT210723https://support.apple.com/HT210724https://support.apple.com/HT210725https://support.apple.com/HT210726https://support.apple.com/HT210727https://support.apple.com/HT210728
2019-12-18
Published