About Apple security updates
For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.
For more information about security, see the Apple Product Security page. You can encrypt communications with Apple using the Apple Product Security PGP Key.
Apple security documents reference vulnerabilities by CVE-ID when possible.
Xcode 9
Released September 19, 2017
Git
Available for: macOS Sierra 10.12.6 or later
Impact: Checking out a maliciously crafted repository may lead to arbitrary code execution
Description: An ssh:// URL scheme handling issue was addressed through improved input validation.
CVE-2017-1000117
ld64
Available for: macOS Sierra 10.12.6 or later
Impact: Parsing a maliciously crafted Mach-O file may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
CVE-2017-7076, CVE-2017-7134, CVE-2017-7135, CVE-2017-7136, CVE-2017-7137: riusksk (泉哥) of Tencent Security Platform Department
subversion
Available for: macOS Sierra 10.12.6 or later
Impact: Checking out a maliciously crafted repository may lead to arbitrary code execution
Description: An input validation issue was addressed through improved input validation.
CVE-2017-9800
Additional recognition
Swift Package Manager
We would like to acknowledge Vincent Esche for their assistance.