web - server and client side remote code execution through a buffer overflow in all git versions before 2.7.1 (unpublished ᴄᴠᴇ-2016-2324 and ᴄᴠᴇ‑2016‑2315)
Someone has released an exploit to execute remote code on each machine (client or server) running git before version 2.7.1.
If you are working under "arch linux", you are pretty save with an "pacman -Syyu"
. I recommend reading the blog post called Remote Code Execution in all git versions (client + server) < 2.7.1: CVE-2016-2324, CVE-2016‑2315. But before reading, update your systems.