CVE-2019-8721: Input Validation
ld64. Multiple issues in ld64 in the Xcode toolchains were addressed by updating to version ld64-507.4.
Other sources
Multiple 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.
Credit
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is CVE-2019-8721?
CVE-2019-8721 is a vulnerability in ld64 in the Xcode toolchains, which could lead to arbitrary code execution with user privilege.
How does CVE-2019-8721 affect Apple Xcode?
CVE-2019-8721 affects Apple Xcode version up to exclusive 11.0, where compiling code without proper input validation could lead to arbitrary code execution with user privilege.
How severe is CVE-2019-8721?
CVE-2019-8721 is classified as critical with a severity score of 8.8.
How can I fix CVE-2019-8721 in Apple Xcode?
To fix CVE-2019-8721 in Apple Xcode, update to version 11.0 or above.
Where can I find more information about CVE-2019-8721?
For more information about CVE-2019-8721, you can refer to the Apple security advisory at https://support.apple.com/HT210609.