Hi Luis,
There is a CVE [1] for zlib < 1.2.12 (released march 27th).GCC currently uses zlib 1.2.11, and binutils-gdb imports the zlib directory from GCC. The recommendation is to get it updated to 1.2.12, which contains the proper fix [2].
I am all for updating the binutils-gdb copy of zlib. I will wait a couple of days to see if anyone else has any comments or concerns, but if not, then I will apply the patches myself. Cheers Nick