Distro GlibC Version
GLIBC
Debian
8.0 7.0 6.0
2.19 2.13 2.11.2
Ubuntu
17.04 zesty 16.04 LTS 14.04 LTS 12.04 LTS 10.04 LTS
2.24 2.23 2.19 2.15 2.11.1
RHEL-7.3 RHEL-6.9 RHEL-5.11 RHEL-4.8
2.17 2.12 2.5 2.3.4
Reference: http://distrowatch.com