[CVE] zlib (< 1.2.12) memory corruption

[Luis Machado]

Hi Nick,

On 4/8/22 14:36, Nick Clifton wrote:
> 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.

I did a quick check and there seems to be some differences between gcc's 
zlib subdir and binutils-gdb's zlib subdir. I think there has been some 
fixes that we may have to port over from our current zlib subdir. I 
tried simply replacing the subdir, but that didn't work right.