There is no maintainer for glibc. This means that this package no longer exists (or never existed). Please do not report new bugs against this package.
You may want to refer to the following packages that are part of the same source: glibc-doc, glibc-source, libc-bin, libc-dev-bin, libc-devtools, libc-l10n, libc6, libc6-amd64, libc6-dbg, libc6-dev, libc6-dev-amd64, libc6-dev-i386, libc6-dev-mips32, libc6-dev-mips64, libc6-dev-mipsn32, libc6-dev-s390, libc6-dev-x32, libc6-i386, libc6-mips32, libc6-mips64, libc6-mipsn32, libc6-pic, libc6-s390, libc6-x32, libc6-xen, locales, locales-all, multiarch-support, nscd.
You might like to refer to the glibc package page, to the Package Tracking System, or to the source package src:glibc's bug page.