VAR-201912-0528
Vulnerability from variot - Updated: 2024-11-23 21:03Multiple issues in ld64 in the Xcode toolchains were addressed by updating to version ld64-507.4. This issue is fixed in Xcode 11.0. Compiling code without proper input validation could lead to arbitrary code execution with user privilege. Apple Xcode is an integrated development environment provided by Apple (Apple) to developers. It is mainly used to develop applications for Mac OS X and iOS. ld64 is one of the Apple toolchain linkers. There is a security vulnerability in the ld64 component in Apple Xcode versions prior to 11.0. The vulnerability is caused by the program not performing correct input validation. CVE-2019-8721: Pan ZhenPeng of Qihoo 360 Nirvan Team CVE-2019-8722: Pan ZhenPeng of Qihoo 360 Nirvan Team CVE-2019-8723: Pan ZhenPeng of Qihoo 360 Nirvan Team CVE-2019-8724: Pan ZhenPeng of Qihoo 360 Nirvan Team
otool Available for: macOS Mojave 10.14.4 and later Impact: Processing a maliciously crafted file may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved state management. CVE-2019-8738: Pan ZhenPeng (@Peterpan0927) of Qihoo 360 Nirvan Team CVE-2019-8739: Pan ZhenPeng (@Peterpan0927) of Qihoo 360 Nirvan Team
Installation note:
Xcode 11.0 may be obtained from:
https://developer.apple.com/xcode/downloads/
To check that the Xcode has been updated:
- Select Xcode in the menu bar
- Select About Xcode
- The version after applying this update will be "11.0".
Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.