Directory Traversal

Affecting git package, versions <1:2.1.4-2.1+deb8u6

Overview

In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, remote code execution can occur. With a crafted .gitmodules file, a malicious project can execute an arbitrary script on a machine that runs "git clone --recurse-submodules" because submodule "names" are obtained from this file, and then appended to $GIT_DIR/modules, leading to directory traversal with "../" in a name. Finally, post-checkout hooks from a submodule are executed, bypassing the intended design in which hooks are not obtained from a remote server.

References

• CVE Details
• Debian Security Advisory
• Debian Security Tracker
• Exploit DB
• Gentoo Security Advisory
• HP Security Bulletin
• MISC
• RHSA Security Advisory
• RHSA Security Advisory
• SUSE
• Security Focus
• Security Tracker
• Ubuntu CVE Tracker
• Ubuntu Security Advisory