When I try to download a Zip archive from the following link:
after some time the
following message gets displayed:

<VERBATIM>
*** glibc detected *** realloc(): invalid next size: 0x081726f8 ***
======= Backtrace: =========
[0x80d8a5b]
[0x80db45e]
[0x80dc462]
[0x8071771]
[0x8071a59]
[0x8071bbe]
[0x805b0fe]
[0x805b3c8]
[0x805bc67]
[0x80bde75]
[0x8048131]
======= Memory map: ========
</VERBATIM>

It seems there is something broken on the fossil web server.

HTH

-- tsbg