Stack-based buffer overflow in the clntudp_call function in sunrpc/clnt_udp.c in the GNU C Library (aka glibc or libc6) allows remote servers to cause a denial of service (crash) or possibly unspecified other impact via a flood of crafted ICMP and UDP packets.
lists.opensuse.org/opensuse-updates/2016-06/msg00030.html
lists.opensuse.org/opensuse-updates/2016-07/msg00039.html
www-01.ibm.com/support/docview.wss?uid=swg21995039
www.securityfocus.com/bid/102073
lists.debian.org/debian-lts-announce/2020/06/msg00027.html
source.android.com/security/bulletin/2017-12-01
sourceware.org/bugzilla/show_bug.cgi?id=20112
sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=bc779a1a5b3035133024b21e2f339fe4219fb11c
usn.ubuntu.com/3759-1/
usn.ubuntu.com/3759-2/
www.oracle.com//security-alerts/cpujul2021.html